Inventor · disambiguated record
Toshio Ogawa
Also filed as: EBARA KATSUYA · MASHIO TASUKU · NISHIYAMA HIROSHI · OGAWA TOSHIO
131 granted patents·12 pending applications·3,124 citations·filing 1974–2021
99Inventor score
Files withHITACHI LTD44MURATA MANUFACTURING CO25FUJITSU LTD12HITACHI MEDICAL CORP12ALPS ELECTRIC CO LTD7
Top patents by PatentIndex Score
143 records- 0197US8025703B2Two-part foam hair dyeKAO CORP·Filed 2009·Granted Sep 27, 2011·32 cites·20 claims
- 0297US6594149B2Liquid cooled circuit deviceHITACHI LTD·Filed 2002·Granted Jul 15, 2003·99 cites·17 claims
- 0396US6588647B2Liquid cooled circuit device and a manufacturing method thereofHITACHI LTD·Filed 2002·Granted Jul 8, 2003·80 cites·2 claims
- 0496US4564782ACeramic filter using multiple thin piezoelectric layersMURATA MANUFACTURING CO·Filed 1984·Granted Jan 14, 1986·73 cites·23 claims
- 0595US10066283B2High-strength cold-rolled steel sheet having excellent uniform elongation and hole expandabilityNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Sep 4, 2018·4 cites·6 claims
- 0695US6313598B1Power semiconductor module and motor drive systemHITACHI LTD·Filed 1999·Granted Nov 6, 2001·200 cites·23 claims
- 0795US6144571ASemiconductor module, power converter using the same and manufacturing method thereofHITACHI LTD·Filed 2000·Granted Nov 7, 2000·111 cites·16 claims
- 0894US6161378AExhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas internal combustion engineHITACHI LTD·Filed 1997·Granted Dec 19, 2000·71 cites·29 claims
- 0993US8911567B2High-strength steel sheet having excellent processability and paint bake hardenability, and method for producing of high-strength steel sheetOGAWA TOSHIO·Filed 2010·Granted Dec 16, 2014·12 cites·27 claims
- 1092US6291880B1Semiconductor device including an integrally molded lead frameHITACHI LTD·Filed 1999·Granted Sep 18, 2001·160 cites·11 claims
- 1191US4649313APiezoelectric displacement elementMURATA MANUFACTURING CO·Filed 1984·Granted Mar 10, 1987·61 cites·9 claims
- 1291US4017828ARedundancy system for data communicationYOKOGAWA ELECTRIC WORKS LTD·Filed 1975·Granted Apr 12, 1977·82 cites·5 claims
- 1390US4742264APiezoelectric sound generatorMURATA MANUFACTURING CO·Filed 1987·Granted May 3, 1988·73 cites·9 claims
- 1488US9567658B2Cold-rolled steel sheetTODA YURI·Filed 2012·Granted Feb 14, 2017·3 cites·12 claims
- 1588US5388405ASystem for purifying exhaust gas for use in an automobileHITACHI LTD·Filed 1992·Granted Feb 14, 1995·55 cites·2 claims
- 1688US4759107AMonolithic piezoelectric element and method of adjusting the resonant frequency thereofMURATA MANUFACTURING CO·Filed 1986·Granted Jul 26, 1988·40 cites·4 claims
- 1787US10802528B2Operating deviceALPS ALPINE CO LTD·Filed 2020·Granted Oct 13, 2020·2 cites·6 claims
- 1887US4566459AUltrasonic diagnosis systemHITACHI LTD·Filed 1984·Granted Jan 28, 1986·205 cites·9 claims
- 1985US6045764AExhaust gas purifying method and catalyst used thereforHITACHI LTD·Filed 1996·Granted Apr 4, 2000·68 cites·6 claims
- 2085US5937637ASystem for purifying exhaust gas for use in an automobileHITACHI LTD·Filed 1996·Granted Aug 17, 1999·45 cites·9 claims
- 2184US6595418B1Enhanced article management system and methodHITACHI INT ELECTRIC INC·Filed 2000·Granted Jul 22, 2003·55 cites·30 claims
- 2284US6397582B1Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engineHITACHI LTD·Filed 2000·Granted Jun 4, 2002·24 cites·20 claims
- 2383US6754776B2Method and system for logical partitioning of cache memory structures in a partitoned computer systemFUJITSU LTD·Filed 2001·Granted Jun 22, 2004·41 cites·27 claims
- 2482US7702992B2Semiconductor integrated circuit with flip-flops having increased reliabilityFUJITSU MICROELECTRONICS LTD·Filed 2006·Granted Apr 20, 2010·11 cites·9 claims
- 2582US5577383AApparatus for controlling internal combustion engineHITACHI LTD·Filed 1994·Granted Nov 26, 1996·53 cites·18 claims
- 2682US5146192ADelay circuit of ultrasonic diagnostic apparatus using delay line comprising variable capacitance diode and inductorHITACHI MEDICAL CORP·Filed 1991·Granted Sep 8, 1992·37 cites·23 claims
- 2781US9458520B2Manufacturing method of a high-strength cold-rolled steel sheet having excellent uniform elongation and hole expandabilityTODA YURI·Filed 2012·Granted Oct 4, 2016·2 cites·9 claims
- 2881US4381469ATemperature stable piezoelectric deviceMURATA MANUFACTURING CO·Filed 1980·Granted Apr 26, 1983·23 cites·17 claims
- 2980US4697320ARoll for a rolling mill, method of producing the same and the rolling mill incorporating the rollHITACHI LTD·Filed 1984·Granted Oct 6, 1987·17 cites·20 claims
- 3079US7661079B2Designing and operating of semiconductor integrated circuit by taking into account process variationFUJITSU MICROELECTRONICS LTD·Filed 2006·Granted Feb 9, 2010·9 cites·1 claims
- 3179US5241473AUltrasonic diagnostic apparatus for displaying motion of moving portion by superposing a plurality of differential imagesISHIHARA KEN·Filed 1991·Granted Aug 31, 1993·81 cites·9 claims
- 3278US4805057AMagnetic head driving apparatusMURATA MANUFACTURING CO·Filed 1987·Granted Feb 14, 1989·36 cites·11 claims
- 3377US6272848B1Exhaust gas cleaning apparatus and method for internal combustion engineHITACHI LTD·Filed 1998·Granted Aug 14, 2001·49 cites·24 claims
- 3477US4809703AUltrasonic doppler blood flow meterHITACHI MEDICAL CORP·Filed 1987·Granted Mar 7, 1989·39 cites·6 claims
- 3576US10280475B2Hot-dip galvanized steel sheet and manufacturing method thereofNONAKA TOSHIKI·Filed 2011·Granted May 7, 2019·1 cites·8 claims
- 3675US5517820AExhaust gas purifying apparatus and method for internal combustion engineHITACHI LTD·Filed 1994·Granted May 21, 1996·43 cites·31 claims
- 3775US4198293ATubular membrane separation process and apparatus thereforHITACHI LTD·Filed 1978·Granted Apr 15, 1980·29 cites·17 claims
- 3875US2019177810A1Cold-rolled steel sheet and plated steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2019·Application pending·0 cites
- 3974US10927428B2Hot-dip galvanized steel sheet and manufacturing method thereofNIPPON STEEL CORP·Filed 2019·Granted Feb 23, 2021·0 cites·8 claims
- 4074US10266928B2Method for producing a cold-rolled steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Apr 23, 2019·0 cites·13 claims
- 4174US9782332B2Hair bleaching or hair dye cosmeticsKAO CORP·Filed 2014·Granted Oct 10, 2017·2 cites·16 claims
- 4273US4142124APiezoelectric crystalline ZnO with 0.01 to 20.0 atomic % MnMURATA MANUFACTURING CO·Filed 1978·Granted Feb 27, 1979·18 cites·2 claims
- 4372US5379586ASystem for controlling oxygen concentration in exhaust gas and exhaust gas cleaning system employing the sameHITACHI LTD·Filed 1992·Granted Jan 10, 1995·39 cites·20 claims
- 4472US4389253AProcess for removing crud from ion exchange resinHITACHI LTD·Filed 1981·Granted Jun 21, 1983·22 cites·16 claims
- 4572US4080838AMethod and apparatus for controlling ultrasonic wavesHITACHI MEDICAL CORP·Filed 1976·Granted Mar 28, 1978·23 cites·4 claims
- 4671US6630115B1Exhaust emission control process for internal combustion enginesHITACHI LTD·Filed 1999·Granted Oct 7, 2003·30 cites·6 claims
- 4771US4568848AAcoustic surface wave devices containing piezoelectric ceramicsMURATA MANUFACTURING CO·Filed 1984·Granted Feb 4, 1986·23 cites·14 claims
- 4870US4751847AUltrasonic velocity meterHITACHI MEDICAL CORP·Filed 1987·Granted Jun 21, 1988·35 cites·8 claims
- 4969US4894580AChip-type resonator and method of manufacturing the sameMURATA MANUFACTURING CO·Filed 1988·Granted Jan 16, 1990·17 cites·7 claims
- 5068US4255272AMethod for producing piezoelectric ceramicsMURATA MANUFACTURING CO·Filed 1979·Granted Mar 10, 1981·16 cites·13 claims
Showing the top 50 of 143 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →