To:
`
`Subject:
`
`Sent:
`
`Sent As:
`
`Attachments:
`
`Panasonic Corporation (troymailroom@hdp.com)
`
`U.S. TRADEMARK APPLICATION NO. 87864539 - ENERGY POLYMER CAPACITOR - 9432-20585
`
`5/4/2018 9:37:43 PM
`
`ECOM116@USPTO.GOV
`
`Attachment - 1
`Attachment - 2
`Attachment - 3
`Attachment - 4
`Attachment - 5
`Attachment - 6
`Attachment - 7
`Attachment - 8
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`Attachment - 42
`Attachment - 43
`Attachment - 44
`
`

`

`Attachment - 45
`Attachment - 46
`Attachment - 47
`Attachment - 48
`
`UNITED STATES PATENT AND TRADEMARK OFFICE (USPTO)
`OFFICE ACTION (OFFICIAL LETTER) ABOUT APPLICANT’S TRADEMARK APPLICATION
`
`*87864539*
`
`CLICK HERE TO RESPOND TO THIS
`LETTER:
`http://www.uspto.gov/trademarks/teas/response_forms.jsp
`
`VIEW YOUR APPLICATION FILE
`
`U.S. APPLICATION
`SERIAL NO.   87864539
`
`           
`
`MARK: ENERGY
`POLYMER CAPACITOR
`
`CORRESPONDENT
`ADDRESS:
`  
`       GEOFFREY D.
`AURINI
`  
`       HARNESS, DICKEY
`& PIERCE, P.L.C.
`         5445 CORPORATE
`DRIVE
`           SUITE 200
`    
`    TROY, MI 48098
`APPLICANT: Panasonic
`Corporation
`
`    
`
`CORRESPONDENT’S
`REFERENCE/DOCKET
`
`   
`
`  9432-20585
`CORRESPONDENT E-
`
`NO:       
`MAIL ADDRESS:       
`
`troymailroom@hdp.com
`
`OFFICE ACTION
`
`STRICT DEADLINE TO RESPOND TO THIS LETTER
`TO AVOID ABANDONMENT OF APPLICANT’S TRADEMARK APPLICATION, THE USPTO MUST RECEIVE APPLICANT’S
`COMPLETE RESPONSE TO THIS LETTER WITHIN 6 MONTHS OF THE ISSUE/MAILING DATE BELOW.   A RESPONSE
`TRANSMITTED THROUGH THE TRADEMARK ELECTRONIC APPLICATION SYSTEM (TEAS) MUST BE RECEIVED BEFORE
`MIDNIGHT EASTERN TIME OF THE LAST DAY OF THE RESPONSE PERIOD.
`
`ISSUE/MAILING DATE: 5/4/2018
`
`TEAS PLUS OR TEAS REDUCED FEE (TEAS RF) APPLICANTS – TO MAINTAIN LOWER FEE, ADDITIONAL
`REQUIREMENTS MUST BE MET, INCLUDING SUBMITTING DOCUMENTS ONLINE:  Applicants who filed their application online
`using the lower-fee TEAS Plus or TEAS RF application form must (1) file certain documents online using TEAS, including responses to Office
`actions (see TMEP §§819.02(b), 820.02(b) for a complete list of these documents); (2) maintain a valid e-mail correspondence address; and (3)
`agree to receive correspondence from the USPTO by e-mail throughout the prosecution of the application.  See 37 C.F.R. §§2.22(b), 2.23(b);
`TMEP §§819, 820.  TEAS Plus or TEAS RF applicants who do not meet these requirements must submit an additional processing fee of $125
`per class of goods.  37 C.F.R. §§2.6(a)(1)(v), 2.22(c), 2.23(c); TMEP §§819.04, 820.04.  However, in certain situations, TEAS Plus or TEAS RF
`applicants may respond to an Office action by authorizing an examiner’s amendment by telephone or e-mail without incurring this additional
`
`fee.    
`
` 
` 
` 
` 
` 
` 
` 
`  
` 
` 
`

`

`The referenced application has been reviewed by the assigned trademark examining attorney.  Applicant must respond timely and completely to
`the issue below.  15 U.S.C. §1062(b); 37 C.F.R. §§2.62(a), 2.65(a); TMEP §§711, 718.03.
`
`SEARCH RESULTS
`
`The trademark examining attorney has searched the Office’s database of registered and pending marks and has found no conflicting marks that
`would bar registration under Trademark Act Section 2(d).  TMEP §704.02; see 15 U.S.C. §1052(d).
`
`However, applicant must address the following issue.
`
`SECTION 2(e)(1) REFUSAL - MERELY DESCRIPTIVE
`
`Registration is refused because the applied-for mark merely describes a feature of applicant’s goods.  Trademark Act Section 2(e)(1), 15 U.S.C.
`§1052(e)(1); see TMEP §§1209.01(b), 1209.03 et seq.
`
`A mark is merely descriptive if it describes an ingredient, quality, characteristic, function, feature, purpose, or use of an applicant’s goods.  
`TMEP §1209.01(b); see, e.g., In re TriVita, Inc., 783 F.3d 872, 874, 114 USPQ2d 1574, 1575 (Fed. Cir. 2015) (quoting In re Oppedahl & Larson
`LLP, 373 F.3d 1171, 1173, 71 USPQ2d 1370, 1371 (Fed. Cir. 2004)); In re Steelbuilding.com, 415 F.3d 1293, 1297, 75 USPQ2d 1420, 1421
`
`(Fed. Cir. 2005) (citing Estate of P.D. Beckwith, Inc. v. Comm’r of Patents , 252 U.S. 538, 543 (1920)).  
`
`Applicant’s proposed mark is ENERGY POLYMER CAPACITOR. The applicant’s specified goods are “capacitors; batteries.”
`
`Generally, if the individual components of a mark retain their descriptive meaning in relation to the goods, the combination results in a composite
`mark that is itself descriptive and not registrable.  In re Fat Boys Water Sports LLC, 118 USPQ2d 1511, 1516 (TTAB 2016) (citing In re Tower
`Tech, Inc., 64 USPQ2d 1314, 1317-18 (TTAB (2002)); TMEP §1209.03(d); see, e.g., Apollo Med. Extrusion Techs., Inc. v. Med. Extrusion
`Techs., Inc., 123 USPQ2d 1844, 1851 (TTAB 2017) (holding MEDICAL EXTRUSION TECHNOLOGIES merely descriptive of medical
`extrusion goods produced by employing medical extrusion technologies); In re Cannon Safe, Inc., 116 USPQ2d 1348, 1351 (TTAB 2015)
`(holding SMART SERIES merely descriptive of metal gun safes); In re King Koil Licensing Co., 79 USPQ2d 1048, 1052 (TTAB 2006) (holding
`
`THE BREATHABLE MATTRESS merely descriptive of beds, mattresses, box springs, and pillows).  
`
`Only where the combination of descriptive terms creates a unitary mark with a unique, incongruous, or otherwise nondescriptive meaning in
`relation to the goods is the combined mark registrable.  See In re Colonial Stores, Inc., 394 F.2d 549, 551, 157 USPQ 382, 384 (C.C.P.A. 1968);
`In re Positec Grp. Ltd., 108 USPQ2d 1161, 1162-63 (TTAB 2013).
`
`In this case, both the individual components and the composite result are descriptive of applicant’s goods and do not create a unique,
`
`incongruous, or nondescriptive meaning in relation to the goods.  
`
`“Energy” is defined as “The property of matter and radiation which is manifest as a capacity to perform work (such as causing motion or the
`interaction of molecules);” “polymer” is defined as “A substance that has a molecular structure consisting chiefly or entirely of a large number
`of similar units bonded together, e.g., many synthetic organic materials used as plastics and resins;” and “capacitor” is “A device used to store
`an electric charge, consisting of one or more pairs of conductors
`separated by an insulator.” See attached definitions from
`en.oxforddictionaries.com.
`
`“A polymer capacitor is a capacitor which uses solid polymers as the electrolyte. They have a number of superior qualities including a safer
`failure mode, lower losses and a longer lifetime than electrolytic capacitors.” See attached evidence from www.capacitorguide.com, see also
`evidence from www.murata.com and en.wikipedia.org. The attached evidence from www.machinedesign.com shows that batteries and capacitors
`store and release energy. The attached evidence from patents.google.com shows that batteries and capacitors are used together.
`
`The proposed mark, when viewed as a whole, merely describes applicant’s goods as capacitors made of polymers for providing energy and
`batteries used therewith.
`
`Because the proposed mark is merely descriptive of applicant’s goods, registration on the Principal Register is refused.
`
`Although applicant’s mark has been refused registration, applicant may respond to the refusal by submitting evidence and arguments in support
`of registration.
`
`  
` 
`  
`  
` 
` 
` 
` 
` 
` 
`  
` 
`

`

`SUPPLEMENTAL REGISTER
`
`Although an amendment to the Supplemental Register would normally be an appropriate response to this refusal, such a response is not
`appropriate in the present case.  The instant application was filed under Trademark Act Section 1(b) and is not eligible for registration on the
`Supplemental Register until an acceptable amendment to allege use meeting the requirements of 37 C.F.R. §2.76 has been timely filed.  37 C.F.R.
`§2.47(d); TMEP §§816.02, 1102.03.
`
`If applicant files an acceptable allegation of use and also amends to the Supplemental Register, the application effective filing date will be the
`date applicant met the minimum filing requirements under 37 C.F.R. §2.76(c) for an amendment to allege use.  TMEP §§816.02, 1102.03; see 37
`C.F.R. §2.75(b).  In addition, the undersigned trademark examining attorney will conduct a new search of the USPTO records for conflicting
`marks based on the later application filing date.  TMEP §§206.01, 1102.03.
`
`Although registration on the Supplemental Register does not afford all the benefits of registration on the Principal Register, it does provide the
`following advantages to the registrant:
`
`(1)      
`
`(2)      
`
`(3)      
`
`(4)      
`
`(5)      
`
`Use of the registration symbol ® with the registered mark in connection with the designated goods, which provides public notice
`of the registration and potentially deters third parties from using confusingly similar marks.
`
`Inclusion of the registered mark in the USPTO’s database of registered and pending marks, which will (a) make it easier for third
`parties to find it in trademark search reports, (b) provide public notice of the registration, and thus (c) potentially deter third
`parties from using confusingly similar marks.
`
`Use of the registration by a USPTO trademark examining attorney as a bar to registering confusingly similar marks in applications
`filed by third parties.
`
`Use of the registration as a basis to bring suit for trademark infringement in federal court, which, although more costly than state
`court, means judges with more trademark experience, often faster adjudications, and the opportunity to seek an injunction, actual
`damages, and attorneys’ fees and costs.
`
`Use of the registration as a filing basis for a trademark application for registration in certain foreign countries, in accordance with
`international treaties.
`
`See 15 U.S.C. §§1052(d), 1091, 1094; J. Thomas McCarthy, McCarthy on Trademarks & Unfair Competition §§19:33, 19:37 (rev. 4th ed. Supp.
`2017).
`
`ADVISORY REGARDING DISCLAIMER
`
`Applicant is advised that, if an acceptable allegation of use and an amendment to the Supplemental Register are filed, applicant will be required
`to disclaim “POLYMER CAPACITOR” because such wording appears to be generic in the context of applicant’s goods.
`  See 15 U.S.C.
`§1056(a); In re Wella Corp., 565 F.2d 143, 144, 196 USPQ 7, 8 (C.C.P.A. 1977); In re Creative Goldsmiths of Wash., Inc., 229 USPQ 766, 768
`(TTAB 1986); TMEP §1213.03(b).
`
`The following is the standardized format for a disclaimer:
`
`No claim is made to the exclusive right to use “POLYMER CAPACITOR” apart from the mark as shown.
`
`TMEP §1213.08(a)(i).
`
`/Kristina Morris/
`Examining Attorney
`Law Office 116
`571-272-5895
`kristina.morris@uspto.gov (informal queries only)
`
`   
`
` 
` 
` 
` 
` 
` 
` 
` 
` 
` 
`  
` 
` 
` 
` 
`  
`

`

`TO RESPOND TO THIS LETTER:   Go to http://www.uspto.gov/trademarks/teas/response_forms.jsp.   Please wait 48-72 hours from the
`issue/mailing date before using the Trademark Electronic Application System (TEAS), to allow for necessary system updates of the application. 
`For technical assistance with online forms, e-mail TEAS@uspto.gov.  For questions about the Office action itself, please contact the assigned
`trademark examining attorney.  E-mail communications will not be accepted as responses to Office actions; therefore, do not respond to
`this Office action by e-mail.
`
`All informal e-mail communications relevant to this application will be placed in the official application record.
`
`WHO MUST SIGN THE RESPONSE:  It must be personally signed by an individual applicant or someone with legal authority to bind an
`applicant (i.e., a corporate officer, a general partner, all joint applicants).  If an applicant is represented by an attorney, the attorney must sign the
`
`response.  
`
`PERIODICALLY CHECK THE STATUS OF THE APPLICATION:   To ensure that applicant does not miss crucial deadlines or official
`notices, check the status of the application every three to four months using the Trademark Status and Document Retrieval (TSDR) system at
`http://tsdr.uspto.gov/.   Please keep a copy of the TSDR status screen.   If the status shows no change for more than six months, contact the
`Trademark Assistance Center by e-mail at TrademarkAssistanceCenter@uspto.gov or call 1-800-786-9199.   For more information on checking
`status, see http://www.uspto.gov/trademarks/process/status/.
`
`TO UPDATE CORRESPONDENCE/E-MAIL ADDRESS:  Use the TEAS form at http://www.uspto.gov/trademarks/teas/correspondence.jsp.
`
` 
` 
` 
`  
`

`

`https Hen oxforddi otionaries com/den niti on/us/enero
`
`05/04/2018 09 19 55 PM
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`MENU
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`Home ) North American English > energy
`Definflion (ll energy In US English
`
`v
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`energy
`00 6 ®
`NOUN
`
`1 The s1rength and vilality required for sustained physical or mental activity,
`‘changes in the levels of vrranims can affect energy and wellebemg'
`. More example semences
`+ swim
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`1.1
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`(energies) A person 5 physical and mental powers, typically as applied to a particular lask or
`actiwly
`. Example aenlences
`2 Power derived from lhe utilization of physical or chemical resaurces‘ especially In provide light
`and heat or ID work machines,
`I Example sentences
`
`.1 Physics
`The property of matter and radiation whrch is manilesl as a capacilyta perlorm work (such as
`causing motion or the interaction of molecules)
`‘a collision in which no energy is transferred'
`0 More example senlences
`
`+ Synonyms
`
`Why was 1928 hailed 'the Yam ofdue
`Didimm'fl
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`05/04/2018 09 19 55 PM
`mos //en oxforddr ctronanes corn/den nm on/us/enerq
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`+ More examprs semencej
`
`3.1 A degree or level ofenergy possessed by something or required by a process.
`‘gamma rays at difiere-nt energies’
`+ More example wmenew
`
`Origin
`Mrd 161h cenmry (denoting force or vigor ofexpression). from French énergie, or via |a19 Latin from
`Greek energeia‘ lrom en, ‘in‘ wilhln‘ I argon 'work'
`
`Pmnunciariun ®
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`quit as pretty docs
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`nt‘lps Hen oxforddlctlonarles com/definltlon/usflenem
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`05/04/2018 09 l9 55 PM
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`nt‘lps Hen oxforddlcllonarles com/deflnltlon/uS/Dol mer 05/04/2018 09 21 04 PM
`
`THE SAURUS
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`GRAMMAR
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`WORD OF THE YEAR
`
`RUM BLOG
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`Home ) Norm Ameucan English » polymel C)
`
`Definrlion ofpofymerln US English.
`BET “ 0RD 1F THE D“ B} EMML
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`
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`\\'|JRD ClE THE D AY
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`Polymer
`
`NOUN
`Chemistry
`A subslance that has a molecular stmcture consisting chiefly or entlrely of a lalge number of
`
`54milar units bonded togetherj e.g., many synthetlc organlc malen'als used as plaslics and reslns
`
`. Example sameness
`Weekly Word Watch: dch'cious,
`Louis, and #Cuéntalu
`Origin
`Mid 19th century: from German, from Greek polumeros ‘having many parts" from polu- ‘many‘ +
`meros ‘a share’,
`
`
`
`polymer fpalamar/ 4);) fpalamarl Why was 1928 hail=d '(he Year ofthe
`
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`nuns Hen oxforddictionaries com/definition/usflcaoaciior
`
`05/04/2018 09 21 26 PM
`
`THE SAURUS
`
`GRAMMAR
`
`E PLDRE
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`WORD OF THE YEAR
`
`RUM ELOG
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`Home ) Norm Ameucan Engiish > capacitui C)
`
`i
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`'
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`Definition ofcapacitor in US Engiish:
`BET “ 0RD 1F THE D“ B} EMML
`
`®
`
`+ Exampie sememes
`
`GOG +‘
`capacitor
`
`NOUN
`A device used in store an eiectric chaige, consisting of one Di more pails of conductors separated
`by an insulator
`
`Pronunciation ®
`capacitor lks‘pasadai/ 4a)
`
`lke‘pasedar/
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`05/04/2m8 09 21 26 PM
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`In, TRENDXNG WORDS
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`hm: r/www caoaclloruulde com/Del merscauacllor/
`
`05/04/2018 09 22 40 PM
`
`
`your guide lo ltre world oi capecltors
`)| capacitorguidemm
`
`film
`
`
`
`—— Types 1: Polymer Capacllur
`Polymer Capacitor
`
`What are polymer capacitors?
`Polymer capacltors are capacflnrs wlllarl use conducllve polymers as the electrolyte, They use sollo polymer electrolytes
`rnstead orllourd or gel eleetrolytes that are lound m urdlnary electrolytic saoaoltors Ely uslrlg solld electrolyle, tne eleetrolyte
`drylrlg ls completely ayolded Eleetrolyte drylng rs one the laclurs tnat limll me llretrme otordlnary electrolytic capacllors There
`are seyeral types ot polymer oapaartors rrlcltldlllg alummium polymercapacllors polymenzeo urgarll: semiconductors and
`cnrlducllve polymer Lapacllnrs
`In most cases polymercapaoltors ball he used as drreotreplaoellllents tor electrolyao capaollors as long as the maximum
`raleo voltage ls nor exceeded Trle maxlmllm rated vollape 0! sold polymercapaolmls ls lower than me maxtmum Vollage ot
`classlcal electrolytic oapaeltors: usually up to 35 volts. allllauorr some palymercapamors are made wrtrl maxlmurrl aperatlng
`vnllages or up lo ma yells DC
`Polymer capacleols naye a number eroualltles superlor to ordinary electrolyte eapacnore; longer llrelrme. nlgrler maxlmum
`walklng temperature. befier slabillwy lower equlyalenl senes reslstarrce [ESR] and a men salerlallure made. These quelmes
`come at a prlce or lower maxlrrlum voltage raelllg and a narrower capaeltarree range as well as a rllgller cost compared to wet
`electrolyte capaulals rnrs we a! capacltar ls no! that new productlnn started ln the 19805 and slllce tnell lrley nave been
`used ln many applloalldlls lrlcllldirlg server motherboards and compuler graonlo aceelemor cards
`
`Polymer capacitor definition
`A polymer capacllur ls a capacllor whlch uses solid polymers as lhe eleetrolyle They have a number or
`superlor oualllres moludrng a saler tarlure mode lower losses and a Inrlger llretlme tnan electrolytrc
`capacllors
`
`Characteristics
`Equivalent series resistance
`Compared to mdmaly electrolyne capaclmrsy polymer capacllors naye a lower eoulvalelll senes reslstalloe Tnls allows
`polymer capacitors to wmlsland nlgller npplecurrerrls ounno norllllal operation A npplecllrrerlt lslrle AC component wnlen
`causes me lnlerrral msiseanoe ot a oapacltor to dlsslpate power and lllus neat up the capaortor The ESE or polymer tapaollors
`ls nearly nonslanlwnmn lts operatlllg temperature range wnlle the ESR or all electrolytlc oapacllor notlceahly onalloes wrlrl
`temperature
`
`Google Chrome
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`Reliability and failure modes
`The use Ola salld electrolvle l5 5 malcl advanteae aver electrolv‘llc cauacllors. m a Wei. electrolv‘llc canacllor ovemeallrlcl can
`
`l What are polymer capacllors?
`ll Pnlymercapacilordefinmon
`lll Characteristics
`I Equlvalent serles reslslance
`ll Rellablllly and fallure modes
`llt Llietlme
`IV Capacllance range. voltage rallng
`and polarlzelicm
`rv Conslrucllon and properlles oi polymer
`capacltors
`V Applicatlons for polymer capacilors
`
`SEPHORA
`
`
`
` SHOP KIEHL'S r
`
`
`
`alumlrlum polymer EEDaEllDll capacitor. savanna: twee
`{apacllurs‘ capxorl :apacltnrsy collouctlve polymer
`ceparltor candurllve polymercapatllors ESR lm-resr
`tauacllur‘ rrlallnry capacltor mallow eapamors, non
`nolanzeo oanaoltdr mlymer canacltel polystyrene
`canarltar rlra canacllors. samwna capautal. samxorl
`{apaclwm‘ solld palyrllernapacllur‘ types
`ook
`Resistor Guide
`
`
`
`

`

`05/04/2018 09 22 40 PM
`rim: f/WWW caoaciloruuide com/Del merscauacilor/
`
`Hie use ma solid electrolyte is a main! advantage over electmtyirc capacriots, in a wetelectmlyuc capacitor, overheattng can
`cause the etecrroiyie to evaporate m it evapmzlea, pressue holds up wilhin the capacitor and it may hursl or even erpiode
`Solid potymer capacitors don't have such risk, and their railnre mode is much saier—Ilie capacitor eithershons or starts acting
`like an open circuit Geneialry speaking, the ndiatiility or polymercapacitors is much better titan tiie ieiaiiility or electrolyte
`capacitors
`Lifetime
`in addnron to boner reitaliility and safer operanon, sclid poiymecapacitors have a holler lirenme because the solid eleclmlyte
`used in theirconstructicn cannot dry out This type or capacitor can operate tor extended periods oi time 31 higher
`iemperamres camared lo elecimiy'lil: capacitors
`capacitance range, voltage rating and polarization
`Porymer capacitors are made with capacitances between tapr and our fire typical maximum voltage rating is up to 35v,
`bu| there are pdymer capacitors wini maximum operating ‘10th reaching 100 v Just the ordinary electrotytic capacitors,
`these polyrriercapaciiors are usuatiy polarized
`
`Construction and properties of polymer capacitors
`Polymer capacitors are made by sandwiching a separator sheet coniainirig lire elecimlyte between two aluminum or Ianialum
`foils Tho aosernhiy is then rolled in anitieue a cylinrincai shape Herman are added and the z-nm'ilmn assertihry is tire-r
`encased in an aiutnmum casing, Since solid polymer capacitors are not regarded as components which are likely a) be
`replaced in a deiirce, they are pilen made in SMT(Su1lacteMoum Technology), This allows them to take up less space on the
`PCB (Primed circuit Board) atthe cotpense oi ueing hardet to unsotder ifreplaceirierns are necessary
`Ordinary electrolytic capacitors have uented casings or casings with a piescored siiriace which is supposed to break in case
`or overpressure and Velll the gases forming inside the casing in a sale way to preterit explosion in case ofoue-iiieatitrg There
`are usually no such sconngs oryerns on poiymercapacitors as there is no signincant pressure buildup in me oirailure
`
`Applications for polymer capacitors
`Due to their low ESR, poiymercapacitots are used in applicationswhich slaw tor a large ripple cunern An example oi such art
`application is a switched Dceuc converter caeat examples are Buck, Boost and Buckanasl converters, which hold the
`voltage attiie capacitor relatively constarn, bot produce a high ripple currern Using a capacitor with low ESR is pieieiable in
`such cases, coin to impmve powereiiicrency and In increase safely in cases or overload and overheating,
`Solid polymer capacnois can be used to smooth out the voltage lrom a power source to a sensilive circuit, reducing power
`noise in srrch applications, they can easily replace standard eleclmlyiic capacitors, pronded that the operating voltage is
`summarily low,
`they can aoo be used ror power bypass and signal decoupling. in order in reduce signal nurse and potter noise generated by
`the dBVlGB which would otherwise be iransfelrad Io lhe power source and mighl alfacl olhsrdevicss connecled lo lhat power
`source
`Polymer capacitors can oiten lieiuund on computer nurnrciooards, especially higherquality ones, such as server
`motherboards, where they have largely repbced wel electrotyic capacitors,
`
`Magnetic Circuit Elements
`Miniature Tmnsfomiers & Induclors Military Medical Telecom Call Usl
`mcemagnelics com
`
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`nuns //vwvw mutate com/eneuS/DroductS/emlconfun/caoacnor/Zm5/01/27 b/201501277m
`05/04/2018 09 24 59 PM
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`ate So al Responsibility
`Co tact us
`@ Arne
`English
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`Mame. m mmams
`:mnHata
`Type to Search
`Q
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`Products l Applications Design Tools l Support
`l About Murata l Investor Relations l my Murata
`am
`> Capacitor Room
`Home 2 Products
`) EMICDN’FU
`
`Polymer Capacitor Basics (Part 1):
`What Is a Polymer Capacitor?
`
`4/28/2015
`Basic
`
`
`
`Category: Capacitor Room
`
`Introduction
`If you take a look at the main board of an electronic device such as a personal
`computer, you’re likeiy to see some of the six types of capacitors shown below
`(Fig. 1). Common types of capacitors include tantalum electrolytic capacitors
`(Mn02 type and polymer type), alummum electrolytic capacitors (eiectrolyte can
`type, polymer can type, and chip type), and MLCC.
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`ntlps //vwvw murals com/ensLlS/Droducls/emlconfun/caoacltor/Zm5/01/27 b/20150127spl
`05/04/20l8 09 24 59 PM
`
`
`
`a... .ml m mo 1000 wow
`
`Capacitance (on at I20 Hzn type)
`Figure 1. Main Types of Capacitors
`
`
`
`What Is a Polymer Capacitor?
`There are many other types of capac‘llnrs, such as film capacitors and niobium
`capacitors, but here we will describe polymer mpacitors, a type of capacitor
`produced by Murata among others.
`In both tantalum electrolytic capacitors and aluminum electrolytic capacitors, a
`polymer capacitor is a type of electrolytic mpacitor in which a conductive polymer
`is used as the cathode. In a polymer-type aluminum electrolytic capacitor, the
`anode is made of aluminum foil and the cathode is made of a conductive polymer.
`In a oolvmertVDe tantalum electrolytic capacitor. the anode is made of the metal
`mntalum and the cathode is made of a conductive polymer. Flgure 2 shows an
`example of this structure.
`
`
`
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`
`Dielectric
`Aluminum mode film
`(-)
`
`Cathode
`Conductive polymer
`
` [ schemallc diagram ]
`
`{+)
`
`Anode
`Aluminum
`
`Figure 2. Example of StIuctore of Conductive Polymer Aluminum Capacitor
`
`In conventional electrolytic capacitors, an electrolyte (electrolytic solution) or
`manganese dioxide (Mn02) was used as the cathode. Using a conductive polymer
`instead provides many advantages, making it possible to achieve a lower
`equivalent series resimnce (ESR), more stable thermal characteristics, improved
`safety, and longer service life. As can be seen in fig. 1, polymer capacitors have
`lower ESR than conventional electrolytic capacitors.
`Note that the type of valve metal used for the anode basically determines the
`
`type ur dielecllic, and this in Lum detel
`es the dielecuic cunslcnl and DC bid:-
`characteristics, as well as the acoustic noise characteristils. Thus, a wide variety
`of characteristics can be obtained by combining anodes, mthodes, and dielectrics
`made of different materials. Each has its own strong and weak points, and these
`must be kept in mind when selecting components as part of the cirmit design
`process.
`
`The ECAS Series
`Aluminum electrolytic capacitors can be broadly di
`
`
`
`
`ed into three types, based
`
`

`

`ntlps //vwvw murata com/eneuS/Droducts/emlconfun/caoacltor/Zm5/01/27 b/ZUlSUlZHfl
`05/04/2018 09 24 59 PM
`
`on the cathode material and the stmcture. Murata's aluminum capacitors are all?
`solid multilayer polymer aluminum capacitors (the ECAS serie5)(Fig. 3). Other
`varieties of aluminum capacitors include canitype wrapped aluminum capacitors
`that use either an eleclrolyte or a polymer as the cathode. What sets ECAS series
`capacitors apart are the high Conductivity of the conductive polymer used as; the
`cathode and the multilayer (laminated) structure of the aluminum elements.
`These make possible the lowest ESR obtainable among electrolytic capacitors.
`ECAS series capacitors also achieve large capacibances, and the