Inventor · disambiguated record
Hiroyuki Ohtsuka
Also filed as: OHTSUKA HIROYUKI
49 granted patents·10 pending applications·1,097 citations·filing 1986–2023
98Inventor score
Top patents by PatentIndex Score
59 records- 0195US8141484B2Screen printing plate and screen printing apparatusOJIMA SATOYUKI·Filed 2006·Granted Mar 27, 2012·94 cites·10 claims
- 0294US6411785B1Fixing unit, fixing method and image forming apparatus using the sameFUJI XEROX CO LTD·Filed 2000·Granted Jun 25, 2002·58 cites·16 claims
- 0393US7355114B2Solar cell and its manufacturing methodSHINETSU HANDOTAI KK·Filed 2002·Granted Apr 8, 2008·57 cites·15 claims
- 0493US6294723B2Photovoltaic device, photovoltaic module and establishing method of photovoltaic systemHITACHI LTD·Filed 1999·Granted Sep 25, 2001·156 cites·20 claims
- 0592US6323415B1Light concentrator photovoltaic module method of manufacturing same and light concentrator photovoltaic systemHITACHI LTD·Filed 1999·Granted Nov 27, 2001·182 cites·21 claims
- 0692US5896292AAutomated system for production facilityCANON KK·Filed 1996·Granted Apr 20, 1999·86 cites·41 claims
- 0789US7615391B2Solar cell and method of fabricating the sameSHINETSU CHEMICAL CO·Filed 2007·Granted Nov 10, 2009·12 cites·8 claims
- 0881US7705236B2Electrode material, solar cell, and method for producing solar cellSHINETSU CHEMICAL CO·Filed 2005·Granted Apr 27, 2010·7 cites·10 claims
- 0980US7294779B2Solar cell and method for producing the sameSHINETSU HANDOTAI KK·Filed 2002·Granted Nov 13, 2007·25 cites·42 claims
- 1080USD438891SCleaning cartridgeFUJI XEROX CO LTD·Filed 1999·Granted Mar 13, 2001·24 cites·1 claims
- 1178US4910468ADual polarization demodulation with cross polarization cancellationNIPPON TELEGRAPH & TELEPHONE·Filed 1989·Granted Mar 20, 1990·57 cites·4 claims
- 1277US11552202B2High efficiency solar cell and method for manufacturing high efficiency solar cellSHINETSU CHEMICAL CO·Filed 2021·Granted Jan 10, 2023·0 cites·19 claims
- 1377US10998463B2High efficiency solar cell and method for manufacturing high efficiency solar cellSHINETSU CHEMICAL CO·Filed 2016·Granted May 4, 2021·1 cites·2 claims
- 1476US11049988B2High photoelectric conversion efficiency solar cell and method for manufacturing high photoelectric conversion efficiency solar cellSHINETSU CHEMICAL CO·Filed 2016·Granted Jun 29, 2021·1 cites·7 claims
- 1575US8766089B2Semiconductor substrate, electrode forming method, and solar cell fabricating methodISHIKAWA NAOKI·Filed 2012·Granted Jul 1, 2014·1 cites·12 claims
- 1674US2023420581A1Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2023·Application pending·0 cites
- 1772US11658251B2Solar cell, solar cell manufacturing system, and solar cell manufacturing methodSHINETSU CHEMICAL CO·Filed 2022·Granted May 23, 2023·0 cites·3 claims
- 1869US8319096B2Semiconductor substrate, method for forming electrode, and method for fabricating solar cellISHIKAWA NAOKI·Filed 2007·Granted Nov 27, 2012·3 cites·8 claims
- 1969US6546198B2Fundus camera for diagnostic fundus photographingTOPCON CORP·Filed 2002·Granted Apr 8, 2003·38 cites·5 claims
- 2068US10692736B2Method for producing high-photoelectric-conversion-efficiency solar cell and high-photoelectric-conversion-efficiency solar cellSHINETSU CHEMICAL CO·Filed 2016·Granted Jun 23, 2020·1 cites·17 claims
- 2166US8253011B2Semiconductor substrate, electrode forming method, and solar cell fabricating methodISHIKAWA NAOKI·Filed 2007·Granted Aug 28, 2012·1 cites·2 claims
- 2266US6461947B1Photovoltaic device and making of the sameHITACHI LTD·Filed 2000·Granted Oct 8, 2002·12 cites·11 claims
- 2365US11538957B2Methods for manufacturing high photoelectric conversion efficiency solar cellSHINETSU CHEMICAL CO·Filed 2020·Granted Dec 27, 2022·0 cites·18 claims
- 2465US6963024B2Solar cell module and its installing moduleSHINETSU CHEMICAL CO·Filed 2002·Granted Nov 8, 2005·11 cites·11 claims
- 2565US5182010AMesophase pitch for use in the making of carbon materialsMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Jan 26, 1993·16 cites·8 claims
- 2664US6404985B1Fundus camera for diagnostic fundus photographingTOPCON CORP·Filed 2000·Granted Jun 11, 2002·24 cites·4 claims
- 2761US12046687B2Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2016·Granted Jul 23, 2024·0 cites·11 claims
- 2861US2020274009A1Method for manufacturing solar cell with high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2020·Application pending·0 cites
- 2960US11424372B2Solar cell, solar cell manufacturing system, and solar cell manufacturing methodSHINETSU CHEMICAL CO·Filed 2017·Granted Aug 23, 2022·0 cites·2 claims
- 3058US11038078B2Method for manufacturing high efficiency solar cellSHINETSU CHEMICAL CO·Filed 2018·Granted Jun 15, 2021·0 cites·4 claims
- 3155US8030223B2Solar cell and method of fabricating the sameSHINETSU CHEMICAL CO·Filed 2010·Granted Oct 4, 2011·0 cites·14 claims
- 3254US2019305149A1Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2016·Application pending·0 cites
- 3353US5572266AFundus cameraTOPCON CORP·Filed 1994·Granted Nov 5, 1996·59 cites·7 claims
- 3452US4779973APhotokeratometric deviceMILLER DAVID·Filed 1986·Granted Oct 25, 1988·47 cites·11 claims
- 3551US11742439B2Drying method of polyimide paste and manufacturing method of solar cell having high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2018·Granted Aug 29, 2023·0 cites·10 claims
- 3650US10756223B2Manufacturing method of solar cell with high photoelectric conversion efficiency and solar cell with high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2016·Granted Aug 25, 2020·0 cites·6 claims
- 3750US10700223B2High photoelectric conversion efficiency solar battery cell and method for manufacturing high photoelectric conversion solar battery cellSHINETSU CHEMICAL CO·Filed 2016·Granted Jun 30, 2020·0 cites·12 claims
- 3850US5189556AColor photography optical systemTOPCON CORP·Filed 1992·Granted Feb 23, 1993·11 cites·11 claims
- 3949US2007186970A1Solar cell and method of fabricating the sameTAKAHASHI MASATOSHI·Filed 2004·Application pending·0 cites
- 4049US2018337303A1Method for manufacturing high photoelectric conversion efficiency solar cell and high photoelectric conversion efficiency solar cellSHINETSU CHEMICAL CO·Filed 2016·Application pending·0 cites
- 4148US2009020156A1Method for manufacturing solar cell and solar cellSHINETSU HANDOTAI KK·Filed 2006·Application pending·0 cites
- 4246US11804560B2Solar cell and method for manufacturing the sameSHINETSU CHEMICAL CO·Filed 2017·Granted Oct 31, 2023·0 cites·10 claims
- 4345US11984522B2High-efficiency backside contact solar cell and method for manufacturing thereofSHINETSU CHEMICAL CO·Filed 2018·Granted May 14, 2024·0 cites·9 claims
- 4445US10896989B2High efficiency back contact type solar cell, solar cell module, and photovoltaic power generation systemSHINETSU CHEMICAL CO·Filed 2016·Granted Jan 19, 2021·0 cites·6 claims
- 4544USD435061SOil cartridgeFUJI XEROX CO LTD·Filed 1999·Granted Dec 12, 2000·5 cites·1 claims
- 4643US11038070B2High photoelectric conversion efficiency solar cell and method for manufacturing high photoelectric conversion efficiency solar cellSHINETSU CHEMICAL CO·Filed 2016·Granted Jun 15, 2021·0 cites·4 claims
- 4741US10236397B2Method for producing high-efficiency solar cellSHINETSU CHEMICAL CO·Filed 2016·Granted Mar 19, 2019·0 cites·16 claims
- 4841US2009020158A1Method for manufacturing solar cell and solar cell, and method for manufacturing semiconductor deviceSHINETSU HANDOTAI KK·Filed 2006·Application pending·0 cites
- 4940US11631779B2Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiencySHINETSU CHEMICAL CO·Filed 2016·Granted Apr 18, 2023·0 cites·6 claims
- 5040US11201253B2High photovoltaic-conversion efficiency solar cell, method for manufacturing the same, solar cell module, and photovoltaic power generation systemSHINETSU CHEMICAL CO·Filed 2016·Granted Dec 14, 2021·0 cites·13 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hiroyuki Ohtsuka 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 →