Inventor · disambiguated record
Katsuhiko Yamaguchi
Also filed as: KOMIMA MAKOTO · YAMAGUCHI KATSUHIKO
72 granted patents·5 pending applications·2,287 citations·filing 1975–2019
99Inventor score
Top patents by PatentIndex Score
77 records- 0196US7933695B2Electric vehicle power source selectionTOYOTA MOTOR CO LTD·Filed 2008·Granted Apr 26, 2011·70 cites·5 claims
- 0296US6522024B1Output state detector for internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Feb 18, 2003·90 cites·20 claims
- 0396US6161640APower output device and method of stopping prime mover in the power output deviceTOYOTA MOTOR CO LTD·Filed 1998·Granted Dec 19, 2000·215 cites·10 claims
- 0495US5391522AGlass-ceramic for magnetic disks and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1994·Granted Feb 21, 1995·102 cites·14 claims
- 0594US5967940AMethod and apparatus for reducing backlash sound in gear mechanismTOYOTA MOTOR CO LTD·Filed 1998·Granted Oct 19, 1999·122 cites·19 claims
- 0693US7353798B2Fuel supply system for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Apr 8, 2008·20 cites·4 claims
- 0792US7213665B2Hybrid vehicle and control method of sameTOYOTA MOTOR CO LTD·Filed 2003·Granted May 8, 2007·54 cites·10 claims
- 0892US5991683APower output apparatus and method of controlling the sameTOYOTA MOTOR CO LTD·Filed 1998·Granted Nov 23, 1999·123 cites·32 claims
- 0990US7281509B2Internal combustion engine system and starting method of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Oct 16, 2007·21 cites·16 claims
- 1090US6819526B2Holding member for information storage disk and information storage disk drive deviceOHARA KK·Filed 2001·Granted Nov 16, 2004·32 cites·63 claims
- 1189US6247437B1Starting control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Jun 19, 2001·100 cites·16 claims
- 1289US6099393APolishing method for semiconductors and apparatus thereforHITACHI LTD·Filed 1998·Granted Aug 8, 2000·77 cites·22 claims
- 1389US5567217AMethod for manufacturing a crystalized glass magnetic disk substrateKABUSHIKI KAISYA OHARA·Filed 1995·Granted Oct 22, 1996·61 cites·2 claims
- 1488US7077224B2Hybrid vehicle and method of controlling the sameTOYOTA MOTOR CO LTD·Filed 2003·Granted Jul 18, 2006·53 cites·13 claims
- 1588US6520160B2Internal combustion engine control unit for, and method of controlling a hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2001·Granted Feb 18, 2003·47 cites·10 claims
- 1688US6208034B1Power output device and control method of the power output device and hybrid vehicle driven by the power output deviceTOYOTA MOTOR CO LTD·Filed 1999·Granted Mar 27, 2001·83 cites·9 claims
- 1788US5626935AMagnetic disk substrate and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1994·Granted May 6, 1997·60 cites·22 claims
- 1887US6742487B2Starting control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2001·Granted Jun 1, 2004·43 cites·14 claims
- 1987US6501250B2Device and method for controlling input/output of secondary batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 31, 2002·74 cites·15 claims
- 2087US6278195B1Power output apparatus, engine controller, and methods of controlling power output apparatus and engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Aug 21, 2001·81 cites·22 claims
- 2187US5580363AMethod for detecting a defect in a glass-ceramic for magnetic disksKABUSHIKI KAISYA OHARA·Filed 1994·Granted Dec 3, 1996·61 cites·4 claims
- 2285US7478691B2Hybrid vehicle and control method of sameTOYOTA MOTOR CO LTD·Filed 2007·Granted Jan 20, 2009·16 cites·7 claims
- 2385US7316219B2Control apparatus for vehicleTOYOTA MOTOR CO LTD·Filed 2006·Granted Jan 8, 2008·16 cites·12 claims
- 2485US7263972B2Fuel supply system for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Sep 4, 2007·12 cites·14 claims
- 2584US5866489AGlass-ceramic substrate for a magnetic diskOHARA KK·Filed 1997·Granted Feb 2, 1999·47 cites·3 claims
- 2684US4520075ASiloxane-modified polyimide precursor and polyimideNITTO ELECTRIC IND CO·Filed 1984·Granted May 28, 1985·47 cites·28 claims
- 2783US7150254B2Auto start-stop device for internal combustion engine and motor vehicle equipped with auto start-stop deviceTOYOTA MOTOR CO LTD·Filed 2005·Granted Dec 19, 2006·17 cites·10 claims
- 2883US6067801APower output apparatus and method of controlling the sameTOYOTA MOTOR CO LTD·Filed 1998·Granted May 30, 2000·65 cites·7 claims
- 2983US5863909AAdjuvant composition for agricultural chemicals and method for enhancing the efficacy of agricultural chemicalKAO CORP·Filed 1995·Granted Jan 26, 1999·34 cites·26 claims
- 3082US6429160B1High rigidity glass-ceramic substrateOHARA KK·Filed 2000·Granted Aug 6, 2002·19 cites·11 claims
- 3180US9236075B2Crystallized glass and crystallized glass substrate for information recording mediumOHARA KK·Filed 2013·Granted Jan 12, 2016·5 cites·9 claims
- 3277US7380537B2Control apparatus for vehicleTOYOTA MOTOR CO LTD·Filed 2007·Granted Jun 3, 2008·8 cites·6 claims
- 3377US7059116B2Power output apparatus and control method for sameTOYOTA MOTOR CO LTD·Filed 2004·Granted Jun 13, 2006·27 cites·24 claims
- 3474US9060514B2Efficacy-enhancing agent composition for agricultural chemicalsYAMAGUCHI KATSUHIKO·Filed 2011·Granted Jun 23, 2015·1 cites·10 claims
- 3574US6965824B2Power output apparatus and automobile with power output apparatus mounted thereonTOYOTA MOTOR CO LTD·Filed 2004·Granted Nov 15, 2005·26 cites·19 claims
- 3673US6180020B1Polishing method and apparatusHITACHI LTD·Filed 1995·Granted Jan 30, 2001·46 cites·24 claims
- 3772US6503857B2High rigidity glass-ceramic substrateOHARA KK·Filed 2001·Granted Jan 7, 2003·9 cites·11 claims
- 3871US6478977B1Polishing method and apparatusHITACHI LTD·Filed 2000·Granted Nov 12, 2002·15 cites·12 claims
- 3969US9228514B2Control device for internal combustion engine and vehicle incorporating control deviceHAYASHI KENJI·Filed 2011·Granted Jan 5, 2016·2 cites·15 claims
- 4068US6497743B2Fertilizer compositionKAO CORP·Filed 2002·Granted Dec 24, 2002·4 cites·34 claims
- 4167US7715957B2Control device of vehicleTOYOTA MOTOR CO LTD·Filed 2006·Granted May 11, 2010·9 cites·12 claims
- 4267US7406378B2Hybrid vehicle and control method thereofTOYOTA MOTOR CO LTD·Filed 2005·Granted Jul 29, 2008·7 cites·12 claims
- 4367US3975330AImide-modified polyester resin and wire enamel containing the imide-modified polyester resinNITTO ELECTRIC IND CO·Filed 1975·Granted Aug 17, 1976·15 cites·37 claims
- 4466US7610954B2Cooling system, control method of the same, and motor vehicleTOYOTA MOTOR CO LTD·Filed 2005·Granted Nov 3, 2009·9 cites·18 claims
- 4565US7263053B2Information recording method and information recording apparatusHITACHI LTD·Filed 2004·Granted Aug 28, 2007·5 cites·18 claims
- 4665US6034011AGlass-ceramic substrate for a magnetic head and a method for manufacturing the sameOHARA KK·Filed 1999·Granted Mar 7, 2000·26 cites·2 claims
- 4764US8234028B2Hybrid vehicle, control method of hybrid vehicle, and computer-readable recording medium recording program for allowing computer to execute control methodYAMAGUCHI KATSUHIKO·Filed 2007·Granted Jul 31, 2012·6 cites·24 claims
- 4864US6395368B1Glass-ceramic substrate for a magnetic information storage mediumOHARA KK·Filed 1999·Granted May 28, 2002·25 cites·6 claims
- 4964US5300467AOptical glassOHARA KK·Filed 1992·Granted Apr 5, 1994·26 cites·11 claims
- 5064US4569885APolyester film for forming printed circuitNITTO ELECTRIC IND COMPANY LIM·Filed 1984·Granted Feb 11, 1986·23 cites·2 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Katsuhiko Yamaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →