Inventor · disambiguated record
Hiroshi Yaguchi
Also filed as: YAGUCHI HIROSHI
62 granted patents·16 pending applications·627 citations·filing 1974–2023
98Inventor score
Top patents by PatentIndex Score
78 records- 0197US5840456AColor toner comprising two binder resins of differing softening pointRICOH KK·Filed 1996·Granted Nov 24, 1998·125 cites·15 claims
- 0291US5776267ASpring steel with excellent resistance to hydrogen embrittlement and fatigueKOBE STEEL LTD·Filed 1996·Granted Jul 7, 1998·68 cites·13 claims
- 0389US7624574B2Piston apparatus, stirling engine, external combustion engine, and fluid deviceTOYOTA MOTOR CO LTD·Filed 2005·Granted Dec 1, 2009·19 cites·15 claims
- 0489US6800147B2High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereofKOBE STEEL LTD·Filed 2002·Granted Oct 5, 2004·18 cites·6 claims
- 0588US10352280B2Blow-by gas recirculation device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2016·Granted Jul 16, 2019·4 cites·8 claims
- 0687US11440394B2Vehicle drive systemTOYOTA MOTOR CO LTD·Filed 2019·Granted Sep 13, 2022·3 cites·6 claims
- 0786US7618498B2Steels for high-strength springs excellent in cold workability and quality stabilityKOBE STEEL LTD·Filed 2006·Granted Nov 17, 2009·11 cites·8 claims
- 0886US6645319B2Wire rod for drawing superior in twisting characteristics and method for production thereofKOBE STEEL LTD·Filed 2001·Granted Nov 11, 2003·19 cites·8 claims
- 0985US7581393B2Stirling engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Sep 1, 2009·15 cites·13 claims
- 1085US5975446APulverizing apparatusRICOH KK·Filed 1996·Granted Nov 2, 1999·38 cites·4 claims
- 1184US3967929AExhaust gas purifying systemNISSAN MOTOR·Filed 1974·Granted Jul 6, 1976·38 cites·10 claims
- 1282US8192565B2Steel for machine and structural use having excellent machinability and process for producing the sameMASUDA TOMOKAZU·Filed 2008·Granted Jun 5, 2012·5 cites·13 claims
- 1379US4975408AThermosensitive recording materialRICOH KK·Filed 1988·Granted Dec 4, 1990·18 cites·15 claims
- 1478US8038934B2High-strength spring steel excellent in brittle fracture resistance and method for producing sameKOBE STEEL LTD·Filed 2007·Granted Oct 18, 2011·3 cites·20 claims
- 1578US7213563B2Piston engine having approximate straight-line mechanismTOYOTA MOTOR CO LTD·Filed 2005·Granted May 8, 2007·9 cites·7 claims
- 1676US8250869B2Exhaust heat recovery apparatusSAWADA DAISAKU·Filed 2007·Granted Aug 28, 2012·4 cites·9 claims
- 1774US7037387B2Steel wire excellent in descalability in mechanical descaling and method for production thereofKOBE STEEL LTD·Filed 2003·Granted May 2, 2006·9 cites·10 claims
- 1874US6596227B2Machine structure steel superior in chip disposability and mechanical properties and its method of makingKOBE STEEL LTD·Filed 2001·Granted Jul 22, 2003·11 cites·16 claims
- 1973US5998074AColor toner and manufacturing method thereof and image forming method using the color tonerRICOH KK·Filed 1998·Granted Dec 7, 1999·19 cites·12 claims
- 2072US7730723B2Exhaust heat recovery apparatusTOYOTA MOTOR CO LTD·Filed 2007·Granted Jun 8, 2010·9 cites·9 claims
- 2172US7191596B2Stirling engine and hybrid system that uses the Stirling engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Mar 20, 2007·16 cites·16 claims
- 2270US11223305B2Vehicle driving deviceTOYOTA MOTOR CO LTD·Filed 2019·Granted Jan 11, 2022·1 cites·5 claims
- 2370US8166759B2Exhaust heat recovery apparatusYAGUCHI HIROSHI·Filed 2007·Granted May 1, 2012·6 cites·33 claims
- 2469US7644581B2Stirling engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Jan 12, 2010·5 cites·9 claims
- 2569US5919592AYellow toner for color electrophotographyRICOH KK·Filed 1998·Granted Jul 6, 1999·19 cites·12 claims
- 2668US7624672B2Piston apparatusTOYOTA MOTOR CO LTD·Filed 2005·Granted Dec 1, 2009·3 cites·7 claims
- 2768US5102693AThermosensitive recording materialRICOH KK·Filed 1990·Granted Apr 7, 1992·12 cites·4 claims
- 2867US6579385B2Free machining steel for use in machine structure of excellent mechanical characteristicsKOBE STEEL LTD·Filed 2001·Granted Jun 17, 2003·7 cites·12 claims
- 2967US4798820AThermosensitive recording materialRICOH KK·Filed 1986·Granted Jan 17, 1989·12 cites·14 claims
- 3066US10605366B2Pressure ringTOYOTA MOTOR CO LTD·Filed 2018·Granted Mar 31, 2020·0 cites·6 claims
- 3166US10458310B2Control device for internal combustion engineMORITA YUSUKE·Filed 2012·Granted Oct 29, 2019·2 cites·8 claims
- 3266US4916111AThermosensitive recording materialRICOH KK·Filed 1988·Granted Apr 10, 1990·12 cites·6 claims
- 3364US7666350B2Low carbon composite free-cutting steel product excellent in roughness of finished surface and method for production thereofKOBE STEEL LTD·Filed 2004·Granted Feb 23, 2010·5 cites·20 claims
- 3463US4895828AThermosensitive recording materialRICOH KK·Filed 1989·Granted Jan 23, 1990·10 cites·18 claims
- 3562US12319007B2Method for producing resin partNICHIA CORP·Filed 2023·Granted Jun 3, 2025·0 cites·20 claims
- 3662US7895835B2Exhaust heat recovery apparatusTOYOTA MOTOR CO LTD·Filed 2007·Granted Mar 1, 2011·5 cites·22 claims
- 3762US7458215B2Stirling engine and hybrid system with the sameTOYOTA MOTOR CO LTD·Filed 2004·Granted Dec 2, 2008·9 cites·22 claims
- 3861US7458216B2Exhaust heat recovery apparatusTOYOTA MOTOR CO LTD·Filed 2006·Granted Dec 2, 2008·2 cites·27 claims
- 3960US5873958AHigh strength and high toughness steel wires and method for making the sameKOBE STEEL LTD·Filed 1997·Granted Feb 23, 1999·11 cites·10 claims
- 4059US8470105B2Process for manufacturing a high carbon steel wire material having excellent wire drawabilityKOCHI TAKUYA·Filed 2009·Granted Jun 25, 2013·0 cites·14 claims
- 4159US3937617ACatalytic converter for automotive internal combustion engineNISSAN MOTOR·Filed 1974·Granted Feb 10, 1976·13 cites·6 claims
- 4258US8776516B2Exhaust heat recovery systemKATAYAMA MASAAKI·Filed 2009·Granted Jul 15, 2014·1 cites·13 claims
- 4355US2006130946A1High Carbon steel wire material having excellent wire drawability and manufacturing process thereofKOBE STEEL LTD·Filed 2005·Application pending·0 cites
- 4454US10994600B2Layout structure for front compartment of hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2019·Granted May 4, 2021·0 cites·6 claims
- 4554US8763514B2Gas lubrication structure for piston, and stirling engineYAGUCHI HIROSHI·Filed 2009·Granted Jul 1, 2014·0 cites·8 claims
- 4653US8273292B2Steel for machine and structural use having excellent machinabilitySAKAMOTO KOICHI·Filed 2009·Granted Sep 25, 2012·0 cites·10 claims
- 4752US9458774B2Abnormal combustion suppression control apparatus for internal combustion engineYAGUCHI HIROSHI·Filed 2011·Granted Oct 4, 2016·1 cites·4 claims
- 4851US8984877B2Heat exchanger for stirling engineYAGUCHI HIROSHI·Filed 2010·Granted Mar 24, 2015·0 cites·10 claims
- 4951US8479507B2Piston engineKATAYAMA MASAAKI·Filed 2009·Granted Jul 9, 2013·0 cites·9 claims
- 5051US8479506B2Piston engineYAGUCHI HIROSHI·Filed 2009·Granted Jul 9, 2013·0 cites·8 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →