Inventor · disambiguated record
Masaki Koyama
Also filed as: KOYAMA MASAKI
70 granted patents·10 pending applications·711 citations·filing 1995–2022
99Inventor score
Files withSEMICONDUCTOR ENERGY LAB20HITACHI LTD11KOYAMA MASAKI10HITACHI AUTOMOTIVE SYSTEMS LTD6NISSAN MOTOR6
Top patents by PatentIndex Score
80 records- 0197US9048265B2Method for manufacturing semiconductor device comprising oxide semiconductor layerSEMICONDUCTOR ENERGY LAB·Filed 2013·Granted Jun 2, 2015·29 cites·14 claims
- 0294US8421184B2Semiconductor deviceKOYAMA MASAKI·Filed 2010·Granted Apr 16, 2013·21 cites·25 claims
- 0394US7851318B2Semiconductor substrate and method for manufacturing the same, and method for manufacturing semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2008·Granted Dec 14, 2010·27 cites·39 claims
- 0492US6864780B2Data transmission system using a human body as a signal transmission pathMATSUSHITA ELECTRIC WORKS LTD·Filed 2001·Granted Mar 8, 2005·176 cites·7 claims
- 0591US8772128B2Method for manufacturing semiconductor deviceYAMAZAKI SHUNPEI·Filed 2008·Granted Jul 8, 2014·23 cites·54 claims
- 0691US7977704B2Semiconductor device having insulated gate semiconductor element, and insulated gate bipolar transistorDENSO CORP·Filed 2009·Granted Jul 12, 2011·19 cites·7 claims
- 0790US8097901B2Semiconductor device having insulated gate semiconductor element, and insulated gate bipolar transistorKOYAMA MASAKI·Filed 2011·Granted Jan 17, 2012·11 cites·4 claims
- 0889US10766330B2Air suspension systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Sep 8, 2020·6 cites·11 claims
- 0989US7247527B2Method for manufacturing semiconductor device, and laser irradiation apparatusSEMICONDUCTOR ENERGY LAB·Filed 2004·Granted Jul 24, 2007·43 cites·20 claims
- 1087US11753084B2Vehicle body structureNISSAN MOTOR·Filed 2019·Granted Sep 12, 2023·6 cites·13 claims
- 1187US8716746B2Semiconductor deviceKOYAMA MASAKI·Filed 2011·Granted May 6, 2014·11 cites·19 claims
- 1286US8952449B2Semiconductor device having both IGBT area and diode areaKOYAMA MASAKI·Filed 2011·Granted Feb 10, 2015·8 cites·9 claims
- 1386US8609502B1Method of manufacturing semiconductor device including insulated gate bipolar transistor and diodeDENSO CORP·Filed 2013·Granted Dec 17, 2013·7 cites·6 claims
- 1486US8318587B2Method for manufacturing semiconductor deviceSHIMOMURA AKIHISA·Filed 2010·Granted Nov 27, 2012·7 cites·28 claims
- 1585US6771161B1Data transmission system using a human body as a signal transmission pathMATSUSHITA ELECTRIC WORKS LTD·Filed 2000·Granted Aug 3, 2004·100 cites·3 claims
- 1684US5947709AScroll compressor with oiling mechanismHITACHI LTD·Filed 1997·Granted Sep 7, 1999·36 cites·13 claims
- 1784US5716202AScroll compressor with oiling mechanismHITACHI LTD·Filed 1995·Granted Feb 10, 1998·36 cites·21 claims
- 1883US11211858B2Linear motor and compressorHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Dec 28, 2021·3 cites·5 claims
- 1983US9466711B2Semiconductor deviceMOMOTA SEIJI·Filed 2009·Granted Oct 11, 2016·9 cites·18 claims
- 2082US9276091B2Semiconductor device and method for manufacturing the sameSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted Mar 1, 2016·3 cites·19 claims
- 2181US8507352B2Method of manufacturing semiconductor device including insulated gate bipolar transistor and diodeKOYAMA MASAKI·Filed 2009·Granted Aug 13, 2013·8 cites·9 claims
- 2280US12083844B2Air suspension system and camera cleaning systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Sep 10, 2024·2 cites·14 claims
- 2380US9470230B2Refrigerant compressor and refrigeration cycle apparatus using the sameKOYAMA MASAKI·Filed 2011·Granted Oct 18, 2016·5 cites·8 claims
- 2479US8481393B2Semiconductor substrate and method for manufacturing the same, and method for manufacturing semiconductor deviceKOYAMA MASAKI·Filed 2010·Granted Jul 9, 2013·4 cites·28 claims
- 2577US8172125B2Vehicle door frame and method of producing the sameOKADA TAKAYUKI·Filed 2010·Granted May 8, 2012·7 cites·3 claims
- 2674US11401924B2Linear compressor and linear compressor control systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Aug 2, 2022·1 cites·8 claims
- 2773US9518838B2Slave suitable for energy management systems and energy management systemPANASONIC CORP·Filed 2013·Granted Dec 13, 2016·5 cites·10 claims
- 2871US9577107B2Oxide semiconductor film and method for forming oxide semiconductor filmSEMICONDUCTOR ENERGY LAB·Filed 2014·Granted Feb 21, 2017·2 cites·8 claims
- 2971US9496138B2Method for manufacturing oxide semiconductor film, method for manufacturing semiconductor device, and semiconductor deviceKOYAMA MASAKI·Filed 2012·Granted Nov 15, 2016·2 cites·10 claims
- 3071US9153575B2Semiconductor deviceKIMURA KEISUKE·Filed 2013·Granted Oct 6, 2015·3 cites·3 claims
- 3171US7881350B2Laser apparatus, laser irradiation method, and manufacturing method of semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2007·Granted Feb 1, 2011·2 cites·24 claims
- 3269US8604545B2Semiconductor device having single crystal silicon layer with local maximum of carbon concentration and shoulder peak of hydrogen concentrationSHIMOMURA AKIHISA·Filed 2011·Granted Dec 10, 2013·2 cites·12 claims
- 3369US8377804B2Manufacturing method of semiconductor substrate and semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2009·Granted Feb 19, 2013·4 cites·6 claims
- 3469US8216914B2Method for manufacturing SOI substrate and method for manufacturing semiconductor deviceKOYAMA MASAKI·Filed 2010·Granted Jul 10, 2012·2 cites·34 claims
- 3569US7358165B2Semiconductor device and method for manufacturing semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2004·Granted Apr 15, 2008·11 cites·44 claims
- 3668US6525670B1In-home health care systemMATSUSHITA ELECTRIC WORKS LTD·Filed 1999·Granted Feb 25, 2003·38 cites·46 claims
- 3767US10288117B2Motor system and compressor equipped therewithHITACHI LTD·Filed 2015·Granted May 14, 2019·1 cites·5 claims
- 3867US10047746B2Refrigerant compressor and refrigeration cycle deviceKOYAMA MASAKI·Filed 2012·Granted Aug 14, 2018·1 cites·5 claims
- 3966US11749675B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Sep 5, 2023·0 cites·5 claims
- 4065US10727727B2Linear motor and apparatus using sameHITACHI LTD·Filed 2015·Granted Jul 28, 2020·1 cites·6 claims
- 4164US12308480B2All-solid-state batterySAMSUNG ELECTRO MECH·Filed 2021·Granted May 20, 2025·0 cites·23 claims
- 4264US12138834B2Molding mold for composite bodyNISSAN MOTOR·Filed 2019·Granted Nov 12, 2024·0 cites·12 claims
- 4364US11411522B2Linear motor system and compressorHITACHI LTD·Filed 2020·Granted Aug 9, 2022·0 cites·1 claims
- 4463US12230754B2All-solid-state batterySAMSUNG ELECTRO MECH·Filed 2021·Granted Feb 18, 2025·0 cites·4 claims
- 4563US8048773B2Method for manufacturing SOI substrateSEMICONDUCTOR ENERGY LAB·Filed 2010·Granted Nov 1, 2011·1 cites·24 claims
- 4662US12510064B2Linear motor, compressor equipped with linear motor, refrigerator equipped with compressor, and vehicle air suspension equipped with compressorHITACHI ASTEMO LTD·Filed 2022·Granted Dec 30, 2025·0 cites·10 claims
- 4760US9379225B2Semiconductor deviceKIMURA KEISUKE·Filed 2013·Granted Jun 28, 2016·1 cites·5 claims
- 4860US7816232B2Method for manufacturing semiconductor substrate and semiconductor substrate manufacturing apparatusSEMICONDUCTOR ENERGY LAB·Filed 2008·Granted Oct 19, 2010·1 cites·8 claims
- 4960US7359412B2Laser apparatus, laser irradiation method, and manufacturing method of semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2003·Granted Apr 15, 2008·4 cites·8 claims
- 5060US6637550B2Displacement type fluid machineHITACHI LTD·Filed 2001·Granted Oct 28, 2003·10 cites·18 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →