`
`
`
`UNITED STATES DEPARTMENT OF COMMERCE
`United States Patent and Trademark Office
`Address: COMMISSIONER FOR PATENTS
`PO. Box 1450
`Alexandria, Virginia 2231371450
`www.uspto.gov
`
`16/067,611
`
`07/01/2018
`
`Tomoki ITO
`
`NIIPP0223WOUS
`
`9869
`
`MARK D. SARALINO (PAN)
`RENNER, OTTO, BOISSELLE & SKLAR, LLP
`1621 EUCLID AVENUE
`19TH FLOOR
`CLEVELAND, OH 44115
`
`ROSARIO BENITEZ GUSTAVO A
`
`ART UNIT
`2838
`
`PAPER NUMBER
`
`NOTIFICATION DATE
`
`DELIVERY MODE
`
`05/24/2019
`
`ELECTRONIC
`
`Please find below and/or attached an Office communication concerning this application or proceeding.
`
`The time period for reply, if any, is set in the attached communication.
`
`Notice of the Office communication was sent electronically on above—indicated "Notification Date" to the
`
`following e—mail address(es):
`
`ipdoeket@rennerotto.eom
`
`PTOL-90A (Rev. 04/07)
`
`
`
`Application No.
`16/067,611
`
`Applicant(s)
`ITO et al.
`
`017/09 Act/'0” Summary
`
`Examiner
`GUSTAVO A
`ROSARIO-BENITEZ
`
`Art Unit
`2838
`
`AIA (FITF) Status
`Yes
`
`- The MAILING DA TE of this communication appears on the cover sheet wit/7 the correspondence address -
`Period for Reply
`
`A SHORTENED STATUTORY PERIOD FOR REPLY IS SET TO EXPIRE g MONTHS FROM THE MAILING
`DATE OF THIS COMMUNICATION.
`Extensions of time may be available under the provisions of 37 CFR 1. 136(a). In no event, however, may a reply be timely filed after SIX (6) MONTHS from the mailing
`date of this communication.
`|f NO period for reply is specified above, the maximum statutory period will apply and will expire SIX (6) MONTHS from the mailing date of this communication.
`-
`- Failure to reply within the set or extended period for reply will, by statute, cause the application to become ABANDONED (35 U.S.C. § 133).
`Any reply received by the Office later than three months after the mailing date of this communication, even if timely filed, may reduce any earned patent term
`adjustment. See 37 CFR 1.704(b).
`
`Status
`
`1). Responsive to communication(s) filed on 03/01/2019.
`C] A declaration(s)/affidavit(s) under 37 CFR 1.130(b) was/were filed on
`
`2a). This action is FINAL.
`
`2b) D This action is non-final.
`
`3)[:] An election was made by the applicant in response to a restriction requirement set forth during the interview on
`; the restriction requirement and election have been incorporated into this action.
`
`4)l:j Since this application is in condition for allowance except for formal matters, prosecution as to the merits is
`closed in accordance with the practice under Expat/7e Quay/e, 1935 CD. 11, 453 O.G. 213.
`
`
`
`Disposition of Claims*
`
`5)
`
`Claim(s) fl is/are pending In the application.
`
`5a) Of the above claim(s)
`
`is/are withdrawn from consideration.
`
`[:1 Claim(s)
`
`is/are allowed.
`
`Claim(s) fl is/are rejected.
`
`C] Claim(s)
`
`is/are objected to.
`
`) ) )
`
`are subject to restriction and/or election requirement
`[:I Claim(s)
`)
`* If any claims have been determined allowable, you may be eligible to benefit from the Patent Prosecution Highway program at a
`
`participating intellectual property office for the corresponding application. For more information, please see
`
`http://www.uspto.gov/patents/init events/pph/index.'sp or send an inquiry to PPeredback@uspto.gov.
`
`Application Papers
`10)[:] The specification is objected to by the Examiner.
`
`11). The drawing(s) filed on 07/01/2019 is/are: a). accepted or b)E] objected to by the Examiner.
`Applicant may not request that any objection to the drawing(s) be held in abeyance. See 37 CFR 1.85(a).
`Replacement drawing sheet(s) including the correction is required if the drawing(s) is objected to. See 37 CFR 1.121 (d).
`
`Priority under 35 U.S.C. § 119
`12). Acknowledgment is made of a claim for foreign priority under 35 U.S.C. § 119(a)-(d) or (f).
`Certified copies:
`
`a). All
`
`b)|:] Some**
`
`c)CI None of the:
`
`1.. Certified copies of the priority documents have been received.
`
`2.[:] Certified copies of the priority documents have been received in Application No.
`
`3:] Copies of the certified copies of the priority documents have been received in this National Stage
`application from the International Bureau (PCT Rule 17.2(a)).
`
`** See the attached detailed Office action for a list of the certified copies not received.
`
`Attachment(s)
`
`1)
`
`Notice of References Cited (PTO-892)
`
`Information Disclosure Statement(s) (PTO/SB/OBa and/or PTO/SB/08b)
`2)
`Paper No(s)/Mail Date 03/01/2019.
`U.S. Patent and Trademark Office
`
`3) [3 Interview Summary (PTO-413)
`Paper No(s)/Mail Date
`4) CI Other-
`
`PTOL-326 (Rev. 11-13)
`
`Office Action Summary
`
`Part of Paper No./Mai| Date 20190516
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 2
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`DETAILED ACTION
`
`1.
`
`This office action is in response to the application filed on July 25I 2015.
`
`Notice of Pre-AIA or AIA Status
`
`2.
`
`The present application, filed on or after March 16, 2013,
`
`is being examined
`
`under the first inventor to file provisions of the AIA.
`
`Claim Rejections - 35 USC § 103
`
`3.
`
`In the event the determination of the status of the application as subject to AIA 35
`
`U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any
`
`correction of the statutory basis for the rejection will not be considered a new ground of
`
`rejection if the prior art relied upon, and the rationale supporting the rejection, would be
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`the same under either status.
`
`4.
`
`The following is a quotation of 35 U.S.C. 103 which forms the basis for all
`
`obviousness rejections set forth in this Office action:
`
`A patent for a claimed invention maynotbe obtained, notwithstanding that the claimed
`invention is not identicallydisclosed as set forth in section 102, if the differences between the
`claimed invention and the priorartare such thatthe claimed invention as awhole would have
`been obvious before the effective filing date of the claimed invention to a person having
`ordinaryskill in the art to which the claimed invention pertains. Patentabilityshall notbe
`negated bythe manner inwhich the invention was made.
`
`5.
`
`Claims 1,2 and 5-9 is/are rejected under 35 U.S.C. 103 as being
`
`unpatentable over Esaka el al. US 2012/0155141 in view of Esaka WO 2012132127
`
`(herein Esaka2).
`
`Regarding Claim 1, Esaka teaches (Figures 2-5 and 10) a power conversion
`
`system (at fig. 10), a power conversion system, comprising: a bridge circuit (3) capable
`
`of converting an input direct-current voltage and outputting an alternating-current
`
`voltage; a filter circuit (5) that attenuates a high-frequency component of the alternating-
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 3
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`current voltage output by the bridge circuit; and a clamping circuit (4) disposed between
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`the bridge circuit and the filter circuit, and capable of short-circuiting an output side of
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`the bridge circuit, the bridge circuit and the clamping circuit included in at least one
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`power conversion device operate in a first mode in which the alternating-current voltage
`
`is output to the filter circuit at three or more voltage levels (positive, zero and negative),
`
`(For Example: Paragraphs 54-62 and 89-91)
`
`Esaka does not teach a plurality of power conversion devices that operate in
`
`parallel and each include two alternating-current side output terminals, a single load
`
`being connected between the two alternating-current side output terminals of the
`
`plurality of power conversion devices, wherein each of the plurality of power conversion
`
`devices includes: a bridge circuit capable of converting an input direct-current voltage
`
`and outputting an alternating-current voltage; afilter circuit that attenuates a high-
`
`frequency component of the alternating-current voltage output by the bridge circuit; and
`
`a clamping circuit disposed between the bridge circuit and the filter circuit, and capable
`
`of short-circuiting an output side of the bridge circuit, and wherein the bridge circuit and
`
`the clamping circuit included in each remaining power conversion device operate in a
`
`second mode in which the alternating-current voltage is output to the filter circuit at two
`
`voltage levels.
`
`Esaka2 teaches (Figures 1-10) a plurality of power conversion devices (Fig. 2)
`
`that operate in parallel and each include two alternating-current side output terminals
`
`(T2, Fig. 3), a single load being connected between the two alternating-current side
`
`output terminals of the plurality of power conversion devices (Fig. 2, AC), wherein each
`
`of the plurality of power conversion devices includes: a bridge circuit (12) capable of
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 4
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`converting an input direct-current voltage and outputting an alternating-current voltage;
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`a filter circuit (L2—L3 and 02) that attenuates a high-frequency component of the
`
`alternating-current voltage output by the bridge circuit; and a clamping circuit (13)
`
`disposed between the bridge circuit and the filter circuit, and capable of short-circuiting
`
`an output side of the bridge circuit and wherein the bridge circuit and the clamping
`
`circuit included 12 and 13) in each remaining power conversion device (Fig. 2) operate
`
`in a second mode in which the alternating-current voltage is output to the filter circuit at
`
`two voltage levels (Positive and negative). (For Example: See Short Circuit operation)
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include a plurality of
`
`power conversion devices that operate in parallel and each include two alternating-
`
`current side output terminals, a single load being connected between the two
`
`alternating-current side output terminals of the plurality of power conversion devices,
`
`wherein each of the plurality of power conversion devices includes: a bridge circuit
`
`capable of converting an input direct-current voltage and outputting an alternating-
`
`current voltage; afilter circuit that attenuates a high-frequency component of the
`
`alternating-current voltage output by the bridge circuit; and a clamping circuit disposed
`
`between the bridge circuit and the filter circuit, and capable of short-circuiting an output
`
`side of the bridge circuit and wherein the bridge circuit and the clamping circuit included
`
`in each remaining power conversion device operate in a second mode in which the
`
`alternating-current voltage is output to the filter circuit at two voltage levels, as taught by
`
`Esaka2, to provide higher outputs by adding converter to the system.
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 5
`
`Regarding Claim 2, Matsui teaches (Figures 3-4) wherein the bridge circuit (at
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`3) includes a first switching element and a second switching element (Of-02)
`
`connected in series, and a third switching element and a fourth switching element (QB-
`
`Q4) connected in series, both terminals of the first switching element and the second
`
`switching element and both terminals of the third switching element and the fourth
`
`switching element are connected in parallel to a direct-current power supply, the
`
`clamping circuit (4) includes a fifth switching element and a sixth switching element
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`connected in series (OS-Q6) and disposed and oriented in opposite directions, and in
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`the second mode (second mode two levels), the fifth switching element and the sixth
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`switching element are switched off (Fig. 4), and (i) the first switching element and the
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`fourth switching element and (ii) the second switching element and the third switching
`
`element are complementarily switched on and off (Fig. 3 and 4). (For Example:
`
`Paragraphs 54-62 and 89-91)
`
`Regarding Claim 5, Esaka teaches (Figures 2—5 and 10) a power converter.
`
`Esaka does not teach further comprising: a control device that specifies an
`
`operating mode for each of the plurality of power conversion devices.
`
`Esaka2 teaches a control device (2) that specifies an operating mode for each of
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`the plurality of power conversion devices (Fig. 2).
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include a control
`
`device that specifies an operating mode for each of the plurality of power conversion
`
`devices, as taught by Esaka2, to provide higher outputs by adding converter to the
`
`system.
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 6
`
`Regarding Claim 6, Esaka teaches (Figures 2—5 and 9-10) further comprising: a
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`voltage detection unit (11) configured to detect alternating-current voltage applied to the
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`load (10) supplied with alternating-current power from the power conversion system;
`
`and a zero-crossover distortion measurement unit (at 20) configured to measure a zero-
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`crossover distortion from the alternating-current voltage detected (See fig. 4), wherein
`
`the control device determines a proportion of the power conversion to operate in the
`
`second mode according to a magnitude of the zero-crossover distortion measured by
`
`the zero-crossover distortion measurement unit (Fig. 3-4). (For Example: Paragraphs
`
`54-62 and 89-91)
`
`Esaka does not teach the plurality of power conversion devices.
`
`Esaka2 teaches the plurality of power conversion devices (Fig. 2).
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include the plurality
`
`of power conversion devices, as taught by Esaka2, to provide higher outputs by adding
`
`converter to the system.
`
`Regarding Claim 7, Esaka teaches (Figures 2—5 and 10) a power converter.
`
`Esaka does not teach wherein among the plurality of power conversion devices,
`
`one is a voltage control method power conversion device, and each remaining one is a
`
`current control method power conversion device, and the voltage control method power
`
`conversion device operates in the second mode, and each current control method
`
`power conversion device operates in the first mode.
`
`Esaka2 teaches wherein among the plurality of power conversion devices (Fig.
`
`2), one is a voltage control method power conversion device, and each remaining one is
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 7
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`a current control method power conversion device, and the voltage control method
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`power conversion device operates in the second mode, and each current control
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`method power conversion device operates in the first mode (depending if it is in the
`
`shorting mode). (See operation mode switching conditions)
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include wherein
`
`among the plurality of power conversion devices, one is a voltage control method power
`
`conversion device, and each remaining one is a current control method power
`
`conversion device, and the voltage control method power conversion device operates in
`
`the second mode, and each current control method power conversion device operates
`
`in the first mode, as taught by Esaka2, to provide higher outputs by adding converter to
`
`the system.
`
`Regarding Claim 8, a power conversion system, comprising: a first power
`
`conversion device; the first power conversion device includes: a first bridge circuit (3)
`
`capable of converting an input direct-current voltage and outputting an alternating-
`
`current voltage; afirst filter circuit (5) that attenuates a high-frequency component of the
`
`alternating-current voltage output by the first bridge circuit; and a clamping circuit (4)
`
`disposed between the first bridge circuit and the first filter circuit, and capable of short-
`
`circuiting an output side of the first bridge circuit, the first bridge circuit and the clamping
`
`circuit operate to output the alternating- current voltage to the first filter circuit at three or
`
`more voltage levels (positive, zero and negative). (For Example: Paragraphs 54-62 and
`
`89-91)
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 8
`
`Esaka does not teach a second power conversion device, wherein the first power
`
`conversion device and the second power conversion device each include two
`
`alternating-current side output terminals that are connected, and operate in parallel, a
`
`single load being connected between the two alternating-current side output terminals of
`
`the first power conversion device and the second power conversion device, and the
`
`second power conversion device includes: a second bridge circuit capable of converting
`
`input direct-current voltage and outputting alternating-current voltage at two voltage
`
`levels; and a second filter circuit that attenuates a high-frequency component of the
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`alternating-current voltage output by the second bridge circuit.
`
`Esaka2 teaches (Figures 2-3) a second power conversion device, wherein the
`
`first power conversion device and the second power conversion device (See fig. 2)
`
`each include two alternating-current side output terminals that are connected (T2), and
`
`operate in parallel, a single load (AC) being connected between the two alternating-
`
`current side output terminals of the first power conversion device and the second power
`
`conversion device, and the second power conversion device includes: a second bridge
`
`circuit (12) capable of converting input direct-current voltage and outputting alternating-
`
`current voltage at two voltage levels (positive and negative); and a second filter circuit
`
`(L2—L3 and 02) that attenuates a high-frequency component of the alternating-current
`
`voltage output by the second bridge circuit.
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include a second
`
`power conversion device, wherein the first power conversion device and the second
`
`power conversion device each include two alternating-current side output terminals that
`
`
`
`Application/Control Number: 16/067,61 1
`Art Unit: 2838
`
`Page 9
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`are connected, and operate in parallel, a single load being connected between the two
`
`alternating-current side output terminals of the first power conversion device and the
`
`second power conversion device, and the second power conversion device includes: a
`
`second bridge circuit capable of converting input direct-current voltage and outputting
`
`alternating-current voltage at two voltage levels; and a second filter circuit that
`
`attenuates a high-frequency component of the alternating-current voltage output by the
`
`second bridge circuit, as taught by Esaka2, to provide higher outputs by adding
`
`converter to the system.
`
`Regarding Claim 9, Esaka teaches (Figures 2-5 and 10) a power conversion
`
`device (Fig. 10), comprising: a bridge circuit (3) capable of converting an input direct-
`
`current voltage and outputting an alternating-current voltage; a filter circuit (5) that
`
`attenuates a high-frequency component of the alternating- current voltage output by the
`
`bridge circuit; a clamping circuit (4) disposed between the bridge circuit and the filter
`
`circuit, and capable of short-circuiting an output side of the bridge circuit; and a control
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`circuit (20) that controls switching elements included in the bridge circuit and the
`
`clamping circuit, wherein the control circuit: has a first mode in which the switching
`
`elements cause the alternating- current voltage to be output to the filter circuit at three
`
`or more voltage levels (zero, positive and negative), and a second mode in which the
`
`switching elements cause the alternating-current voltage to be output to the filter circuit
`
`at two voltage levels (positive and negative); and is configured to be capable of
`
`switching between the first mode and the second mode. (For Example: Paragraphs 54-
`
`62 and 89-91)
`
`
`
`Application/Control Number: 16/067,611
`Art Unit: 2838
`
`Page 10
`
`Esaka does not teach wherein the power conversion device operates in parallel
`
`with another power conversion device, and the power conversion device and the
`
`another power conversion device each includes two alternating-current side output
`
`terminals, a single load being connected between the two alternating-current side output
`
`terminals of the power conversion device and the another power conversion device.
`
`Esaka2 teaches wherein the power conversion device operates in parallel with
`
`another power conversion device (Fig. 2), and the power conversion device and the
`
`another power conversion device each includes two alternating-current side output
`
`terminals (T2), a single load (AC) being connected between the two alternating-current
`
`side output terminals of the power conversion device and the another power conversion
`
`device.
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include wherein the
`
`power conversion device operates in parallel with another power conversion device, and
`
`the power conversion device and the another power conversion device each includes
`
`two alternating-current side output terminals, a single load being connected between the
`
`two alternating-current side output terminals of the power conversion device and the
`
`another power conversion device, as taught by Esaka2, to provide higher outputs by
`
`adding converter to the system.
`
`
`
`Application/Control Number: 16/067,611
`Art Unit: 2838
`
`Page 11
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`6.
`
`Claims 3-4 is/are rejected under 35 U.S.C. 103 as being unpatentable over
`
`Esaka el al. US 2012/0155141 in view of Esaka WO 2012132127 (herein Esaka2) as
`
`applied to claim 1 above, and further in view of Kanayama etal. US 2016/0124400.
`
`Regarding Claim 3, Esaka as modified teaches the power conversion system
`
`with the plurality of power conversion devices (Fig. 2 of Esaka 2) that is operating in
`
`parallel.
`
`Esaka as modified does not teach wherein each of the plurality of power
`
`conversion devices further includes a communication unit for notifying an operating
`
`mode of the power conversion device to another one of the plurality of power
`
`conversion devices.
`
`Kanayama teaches (Figures 1-4) wherein each of the plurality of power
`
`conversion devices (110) further includes a communication unit (170 and 190) for
`
`notifying an operating mode of the power conversion device to another one of the
`
`plurality of power conversion devices.
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Matsui to include wherein
`
`each of the plurality of power conversion devices further includes a communication unit
`
`for notifying an operating mode of the power conversion device to another one of the
`
`plurality of power conversion devices, as taught by Kanayama, to controlling of the
`
`power system through the communication bus.
`
`Regarding Claim 4, Esaka teaches (Figures 2-5 and 10) a power converter.
`
`
`
`Application/Control Number: 16/067,611
`Art Unit: 2838
`
`Page 12
`
`Esaka does not teach wherein the plurality of power conversion devices are
`
`started in the second mode, and subsequently one or more of the plurality of power
`
`conversion devices switches to the first mode.
`
`Esaka2 teaches wherein the plurality of power conversion devices (Fig. 2) are
`
`started in the second mode, and subsequently one or more of the plurality of power
`
`conversion devices switches to the first mode. (See operation mode portion, depending
`
`on current and voltage levels)
`
`It would have been obvious to one of ordinary skill in the art before the effective
`
`filling date of the claimed invention to modify the circuit of Esaka to include wherein the
`
`plurality of power conversion devices are started in the second mode, and subsequently
`
`one or more of the plurality of power conversion devices switches to the first mode, as
`
`taught by Esaka2, to provide higher outputs by adding converter to the system.
`
`Response to Arguments
`
`7.
`
`Applicant’s arguments with respect to claims 1-9 have been considered but are
`
`moot because the arguments do not apply to any of the references being used in the
`
`current rejection.
`
`
`
`Application/Control Number: 16/067,611
`Art Unit: 2838
`
`Page 13
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`Conclusion
`
`8.
`
`Applicant's amendment necessitated the new ground(s) of rejection presented in
`
`this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP
`
`§ 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37
`
`CFR1.136(a).
`
`A shortened statutory period for reply to this final action is set to expire THREE
`
`MONTHS from the mailing date of this action.
`
`In the event a first reply is filed within
`
`TWO MONTHS of the mailing date of this final action and the advisory action is not
`
`mailed until after the end of the THREE-MONTH shortened statutory period, then the
`
`shortened statutory period will expire on the date the advisory action is mailed, and any
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`extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of
`
`the advisory action.
`
`In no event, however, will the statutory period for reply expire later
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`than SIX MONTHS from the date of this final action.
`
`9.
`
`Any inquiry concerning this communication or earlier communications from the
`
`examiner should be directed to GUSTAVO A ROSARIO-BENITEZ whose telephone
`
`number is (571)270-7888. The examiner can normally be reached on M-F 9AM-5PM.
`
`Examiner interviews are available via telephone, in-person, and video
`
`conferencing using a USPTO supplied web-based collaboration tool. To schedule an
`
`interview, applicant is encouraged to use the USPTO Automated Interview Request
`
`(AIR) at http://www.uspto.gov/interviewpractice.
`
`lf attempts to reach the examiner by telephone are unsuccessful, the examiner’s
`
`supervisor, MONICA LEWIS can be reached on 5712721838. The fax phone number
`
`for the organization where this application or proceeding is assigned is 571-273-8300.
`
`
`
`Application/Control Number: 16/067,611
`Art Unit: 2838
`
`Page 14
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`
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`
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`system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000.
`
`/GUSTAVO A ROSARIO-BENITEZ/
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`Primary Examiner, Art Unit 2838
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`