Inventor · disambiguated record
Eiji Masuda
Also filed as: MASUDA EIJI
56 granted patents·12 pending applications·731 citations·filing 1976–2025
98Inventor score
Top patents by PatentIndex Score
68 records- 0194US8564241B2Battery temperature control systemMASUDA EIJI·Filed 2012·Granted Oct 22, 2013·29 cites·4 claims
- 0293US4356450AOffset compensating circuit for operational amplifierTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Oct 26, 1982·45 cites·10 claims
- 0392US8992733B2Water and oil resistant agent for paper and paper treatment processUEHARA TETSUYA·Filed 2011·Granted Mar 31, 2015·32 cites·20 claims
- 0491US12227608B2Method for producing low-molecular weight polytetrafluoroethylene, and powderDAIKIN IND LTD·Filed 2022·Granted Feb 18, 2025·2 cites·3 claims
- 0590US4243975AAnalog-to-digital converterTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted Jan 6, 1981·39 cites·8 claims
- 0688US4539551ADifferential voltage amplifierTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Sep 3, 1985·34 cites·8 claims
- 0787US9156614B2Loading/unloading apparatusYASKAWA DENKI SEISAKUSHO KK·Filed 2013·Granted Oct 13, 2015·24 cites·17 claims
- 0886US4511814ASemiconductor analog switch circuit with compensation means to minimize offset of output voltageTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Apr 16, 1985·30 cites·4 claims
- 0985US7982435B2Battery charging and discharging control apparatusDENSO CORP·Filed 2008·Granted Jul 19, 2011·16 cites·6 claims
- 1085US4560890AAutozeroed comparatorTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Dec 24, 1985·38 cites·6 claims
- 1182US8280570B2Power controller for hybrid vehicleMASUDA EIJI·Filed 2008·Granted Oct 2, 2012·14 cites·2 claims
- 1280US4786824AInput signal level detecting circuitTOSHIBA KK·Filed 1984·Granted Nov 22, 1988·23 cites·3 claims
- 1379US8575897B2Battery temperature control systemMASUDA EIJI·Filed 2009·Granted Nov 5, 2013·13 cites·7 claims
- 1478US4518880AMOS Switch circuit with consistent low on resistanceTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted May 21, 1985·21 cites·5 claims
- 1576US9695265B2Process for producing polyacetal copolymerPOLYPLASTICS CO·Filed 2014·Granted Jul 4, 2017·2 cites·11 claims
- 1674US9745400B2Method for producing polyacetal copolymerPOLYPLASTICS CO·Filed 2014·Granted Aug 29, 2017·1 cites·13 claims
- 1774US9546241B2Method for producing polyacetal copolymerPOLYPLASTICS CO·Filed 2014·Granted Jan 17, 2017·2 cites·7 claims
- 1874US4638303ADigital-analog converterTOKYO SHIBAURA ELECTRIC CO·Filed 1985·Granted Jan 20, 1987·30 cites·8 claims
- 1974US4364028AIntegrating analog to digital converter having offset error compensationTOKYO SHIBAURA ELECTRIC CO·Filed 1981·Granted Dec 14, 1982·23 cites·10 claims
- 2072US11306222B2Fluorocarbon, lubricant for use on ice and snow, and coating methodDAIKIN IND LTD·Filed 2019·Granted Apr 19, 2022·0 cites·4 claims
- 2172US7918762B2Power output apparatus, control method of power output apparatus, and vehicle equipped with power output apparatusTOYOTA MOTOR CO LTD·Filed 2007·Granted Apr 5, 2011·9 cites·15 claims
- 2272US6269552B1Method of drying substrates and drying apparatusTOKYO ELECTRON LTD·Filed 1998·Granted Aug 7, 2001·44 cites·17 claims
- 2369US4376918AOvertone crystal oscillating circuitTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Mar 15, 1983·16 cites·16 claims
- 2468US9550853B2Method for producing polyacetal copolymerPOLYPLASTICS CO·Filed 2014·Granted Jan 24, 2017·1 cites·9 claims
- 2567US6501712B1Disc identifying method and deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Dec 31, 2002·24 cites·8 claims
- 2666US8288998B2Method and apparatus for charge discharge power controlMASUDA EIJI·Filed 2009·Granted Oct 16, 2012·6 cites·14 claims
- 2766US5866670AProcess for preparing polyacetal copolymerPOLYPLASTICS CO·Filed 1996·Granted Feb 2, 1999·20 cites·16 claims
- 2866US5013942AClock supply circuit having adjustment capacitanceTOSHIBA KK·Filed 1989·Granted May 7, 1991·34 cites·6 claims
- 2965US2025368762A1Method for producing fluoropolymer aqueous dispersion and fluoropolymer aqueous dispersionDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 3064US9044835B2Gas container valve fastening machineMASUDA EIJI·Filed 2012·Granted Jun 2, 2015·1 cites·1 claims
- 3164US2025034293A1Method for producing refined polytetrafluoroethylene powder, and low-molecular-weight polytetrafluoroethylene powderDAIKIN IND LTD·Filed 2024·Application pending·0 cites
- 3263US4633101ASemiconductor sample and hold switching circuitTOKYO SHIBAURA ELECTRIC CO·Filed 1985·Granted Dec 30, 1986·14 cites·10 claims
- 3363US2025376546A1Method for producing low molecular weight polytetrafluoroethylene aqueous dispersionDAIKN IND LTD·Filed 2025·Application pending·0 cites
- 3462US12460055B2Low-molecular-weight polytetrafluoroethylene production method and powderDAIKIN IND LTD·Filed 2022·Granted Nov 4, 2025·0 cites·4 claims
- 3562US4591801ADifferential amplifier circuitTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted May 27, 1986·10 cites·6 claims
- 3660US5726276AProcess for preparing polyacetal copolymerPOLYPLASTICS CO·Filed 1996·Granted Mar 10, 1998·16 cites·7 claims
- 3760US4352092ADigital to analog converterTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Sep 28, 1982·14 cites·10 claims
- 3860US2023340179A1Polyacetal copolymer and method of manufacturing the samePOLYPLASTICS CO·Filed 2021·Application pending·0 cites
- 3960US2025289933A1Method for producing polytetrafluoroethylene micropowder and polytetrafluoroethylene powderDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 4059US7925417B2Control apparatus and method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Apr 12, 2011·4 cites·5 claims
- 4159US4893031ALogical circuits for performing logical functions without a power supplyTOSHIBA KK·Filed 1988·Granted Jan 9, 1990·12 cites·14 claims
- 4258US10767057B2Coating film, composition for coating film, film-forming agent, article having coating film, and method for forming coating filmDAIKIN IND LTD·Filed 2017·Granted Sep 8, 2020·0 cites·15 claims
- 4358US7974759B2Control device for vehicle, and control method thereofTOYOTA MOTOR CO LTD·Filed 2007·Granted Jul 5, 2011·3 cites·7 claims
- 4456US4656429AVoltage comparison circuit with ripple component eliminationTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Apr 7, 1987·9 cites·1 claims
- 4556US4639554ADual-tone multiple-frequency-signal generating apparatusTOSHIBA KK·Filed 1984·Granted Jan 27, 1987·10 cites·34 claims
- 4654US7263281B2Information recording/reproduction methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 28, 2007·2 cites·4 claims
- 4754US4524327AOperational amplifierTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Jun 18, 1985·8 cites·5 claims
- 4853US5252508AApparatus and method for the fabrication of semiconductor circuitsTOSHIBA KK·Filed 1991·Granted Oct 12, 1993·15 cites·11 claims
- 4953US4600916AParallel analog-to-digital converter circuitTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Jul 15, 1986·11 cites·1 claims
- 5052US2025163196A1Powder containing low molecular weight polytetrafluoroethylene particle and method for producing the sameDAIKIN IND LTD·Filed 2025·Application pending·0 cites
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →