Inventor · disambiguated record
Osamu Sakai
Also filed as: SAKAI OSAMU
76 granted patents·30 pending applications·1,199 citations·filing 1981–2024
99Inventor score
Files withPANASONIC IP MAN CO LTD28MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23NGK INSULATORS LTD9SHARP KK8PANASONIC CORP7
Top patents by PatentIndex Score
106 records- 0196US12139805B2Hydrogen systemPANASONIC IP MAN CO LTD·Filed 2021·Granted Nov 12, 2024·2 cites·9 claims
- 0296US4703453ASemiconductor memory with an improved dummy cell arrangement and with a built-in error correcting code circuitHITACHI LTD·Filed 1983·Granted Oct 27, 1987·84 cites·16 claims
- 0395US5674301AHydrogen preparing apparatusNGK INSULATORS LTD·Filed 1995·Granted Oct 7, 1997·106 cites·4 claims
- 0495US5518530AConnected body comprising a gas separator and a metal, and apparatus for separating hydrogen gas from a mixed gasNGK INSULATORS LTD·Filed 1994·Granted May 21, 1996·113 cites·9 claims
- 0594US11952671B2Electrochemical hydrogen pumpPANASONIC IP MAN CO LTD·Filed 2019·Granted Apr 9, 2024·4 cites·11 claims
- 0694US10722841B2Hydrogen supply systemPANASONIC IP MAN CO LTD·Filed 2018·Granted Jul 28, 2020·4 cites·18 claims
- 0794US5614001AHydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separatorNGK INSULATORS LTD·Filed 1995·Granted Mar 25, 1997·113 cites·12 claims
- 0893US10811712B2Hydrogen supply system for adjusting dew point of a hydrogen-containing gas supplied theretoPANASONIC IP MAN CO LTD·Filed 2018·Granted Oct 20, 2020·3 cites·9 claims
- 0992US10301179B2Electrochemical hydrogen pumpPANASONIC IP MAN CO LTD·Filed 2017·Granted May 28, 2019·6 cites·6 claims
- 1091US5208782ASemiconductor integrated circuit device having a plurality of memory blocks and a lead on chip (LOC) arrangementHITACHI LTD·Filed 1992·Granted May 4, 1993·133 cites·28 claims
- 1187US6665118B2Rear-projection screen and rear-projection image displayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 16, 2003·21 cites·12 claims
- 1286US6818339B1Polymer electrolyte type fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 16, 2004·30 cites·18 claims
- 1385US7005205B1Polymer electrolyte fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 28, 2006·27 cites·2 claims
- 1485US6779482B2Plasma deposition device for forming thin filmSHARP KK·Filed 2001·Granted Aug 24, 2004·25 cites·32 claims
- 1584US10096849B2Solid oxide fuel cell systemPANASONIC CORP·Filed 2015·Granted Oct 9, 2018·2 cites·4 claims
- 1683US12203178B2Electrochemical hydrogen pumpPANASONIC IP MAN CO LTD·Filed 2024·Granted Jan 21, 2025·0 cites·5 claims
- 1782US5958091AHydrogen preparing apparatusNGK INSULATORS LTD·Filed 1997·Granted Sep 28, 1999·42 cites·8 claims
- 1881US7150934B2Electrolyte film electrode union, fuel cell containing the same and process for producing themMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 19, 2006·17 cites·6 claims
- 1981US6142096AElectronic device manufacturing apparatus and method for manufacturing electronic deviceSHARP KK·Filed 1997·Granted Nov 7, 2000·48 cites·28 claims
- 2080US6991870B2Gas diffusion electrode and fuel cell using thisMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 31, 2006·18 cites·10 claims
- 2178US7708812B2Hydrogen gas separator fixing structure and hydrogen gas separating device using the sameNGK INSULATORS LTD·Filed 2007·Granted May 4, 2010·15 cites·7 claims
- 2278US6881510B1Method for resorting characteristics of polymer electrolyte fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 19, 2005·16 cites·3 claims
- 2377US6638655B2Fuel cell systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 28, 2003·14 cites·7 claims
- 2476US7090705B2Electronic device, production method thereof, and plasma process apparatusSHARP KK·Filed 2003·Granted Aug 15, 2006·18 cites·23 claims
- 2575US7314360B2Stretch rod extending device and bottom mold lifting device for stretch blow molding machineA K TECH LAB INC·Filed 2003·Granted Jan 1, 2008·15 cites·16 claims
- 2675US7060384B2Polymer electrolyte fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jun 13, 2006·13 cites·10 claims
- 2775US6541144B2Fuel cell systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 1, 2003·15 cites·7 claims
- 2873US7201993B2Polymer electrolyte fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 10, 2007·9 cites·4 claims
- 2973US6696194B1Polymer electrolytic fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 24, 2004·11 cites·11 claims
- 3073US4817052ASemiconductor memory with an improved dummy cell arrangement and with a built-in error correcting code circuitHITACHI LTD·Filed 1987·Granted Mar 28, 1989·26 cites·13 claims
- 3173US2024318668A1CompressorPANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3273US2024011174A1Compressor device and method for controlling compressor devicePANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3373US2024017210A1Compressor device and method for controlling compressor devicePANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3472US2024301570A1Compression devicePANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3572US2024060190A1Electrochemical cell for hydrogen pump and compression apparatusPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3671US10014536B2Fuel cell systemPANASONIC CORP·Filed 2015·Granted Jul 3, 2018·1 cites·14 claims
- 3771US7097932B1Polymer electrolytic fuel cell and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 29, 2006·8 cites·8 claims
- 3870US7455703B2Method for manufacturing polymer electrolyte fuel cellPANASONIC CORP·Filed 2006·Granted Nov 25, 2008·1 cites·9 claims
- 3970US6628348B1Plasma address electrooptical deviceSHARP KK·Filed 2000·Granted Sep 30, 2003·13 cites·2 claims
- 4070US5433888APhosphor composition, phosphor-coating composition, discharge lamp and preparation method thereofNICHIA KAGAKU KOGYO KK·Filed 1993·Granted Jul 18, 1995·20 cites·2 claims
- 4170US2025075344A1Compression apparatus, method of operating compression apparatus, and method of manufacturing compression apparatusPANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 4269US6830840B1Operation method for polymer electrolytic fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 14, 2004·7 cites·3 claims
- 4367US10629926B2Solid oxide fuel cell systemPANASONIC CORP·Filed 2018·Granted Apr 21, 2020·0 cites·2 claims
- 4467US9592993B2Customized elevator passenger interfaceJOYCE MATTHEW·Filed 2011·Granted Mar 14, 2017·4 cites·13 claims
- 4567US6746793B1Polymer electrolyte fuel cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jun 8, 2004·32 cites·12 claims
- 4667US5177743ASemiconductor memoryHITACHI LTD·Filed 1991·Granted Jan 5, 1993·26 cites·29 claims
- 4767US2019088964A1Hydrogen purifiers and hydrogen purification systemsPANASONIC IP MAN CO LTD·Filed 2018·Application pending·0 cites
- 4866US7923105B2Hydrogen separator and process for production thereofNGK INSULATORS LTD·Filed 2005·Granted Apr 12, 2011·2 cites·13 claims
- 4965US12046781B2Compression apparatusPANASONIC IP MAN CO LTD·Filed 2021·Granted Jul 23, 2024·0 cites·4 claims
- 5065US5523018APhosphor composition, phosphor-coating composition, discharge lamp, and preparation method thereofNICHIA KAGAKU KOGYO KK·Filed 1995·Granted Jun 4, 1996·22 cites·8 claims
Showing the top 50 of 106 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →