Inventor · disambiguated record
Tohru Kawai
Also filed as: KAWAI TOHRU · SUMI AKIYASU
45 granted patents·17 pending applications·606 citations·filing 1980–2025
98Inventor score
Files withRENESAS ELECTRONICS CORP30CANON KK29KAWASAKI STEEL CO1SHIMIZU CONSTRUCTION CO LTD1SONY CORP1
Top patents by PatentIndex Score
62 records- 0197US4596454APhotographic lens barrel assemblyCANON KK·Filed 1983·Granted Jun 24, 1986·61 cites·3 claims
- 0295US4460253AElectromagnetically driven diaphragm deviceCANON KK·Filed 1982·Granted Jul 17, 1984·35 cites·1 claims
- 0391US7385632B2Lens, camera body and camera systemCANON KK·Filed 2005·Granted Jun 10, 2008·16 cites·10 claims
- 0491US4484099APiezoelectric vibration wave motor with multiple traveling wave generating membersCANON KK·Filed 1983·Granted Nov 20, 1984·55 cites·5 claims
- 0588US12040399B2Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2022·Granted Jul 16, 2024·1 cites·12 claims
- 0688US4367931AElectromagnetically driven diaphragm deviceCANON KK·Filed 1980·Granted Jan 11, 1983·19 cites·7 claims
- 0787US10921515B2Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2019·Granted Feb 16, 2021·4 cites·16 claims
- 0887US4697891AFocal length variable lens apparatusCANON KK·Filed 1984·Granted Oct 6, 1987·48 cites·12 claims
- 0986US4384767AClamping device for camera accessory or hoodCANON KK·Filed 1981·Granted May 24, 1983·20 cites·8 claims
- 1082US4771203AVibration wave motorCANON KK·Filed 1987·Granted Sep 13, 1988·41 cites·12 claims
- 1181US7688353B2Image-taking apparatus and image-taking methodCANON KK·Filed 2005·Granted Mar 30, 2010·8 cites·4 claims
- 1280US8963207B2Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2014·Granted Feb 24, 2015·4 cites·20 claims
- 1378US2024304524A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2024·Application pending·0 cites
- 1477US7515199B2Detachable lens apparatus, camera system and camera for accurate automatic focusing using two driving mechanismsCANON KK·Filed 2005·Granted Apr 7, 2009·5 cites·8 claims
- 1577US2025054884A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2024·Application pending·0 cites
- 1675US4478491AFocus presetting mechanism for a camera lens assemblyCANON KK·Filed 1984·Granted Oct 23, 1984·29 cites·2 claims
- 1774US6559900B1Lens system for a projection display apparatus in which lenses are uniform in one direction and nonuniform in anotherSONY CORP·Filed 2000·Granted May 6, 2003·14 cites·7 claims
- 1871US2023016552A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2022·Application pending·0 cites
- 1969US4458990AAdjusting mechanism for lens mounting assemblyCANON KK·Filed 1981·Granted Jul 10, 1984·23 cites·7 claims
- 2068US5335115ALens barrelCANON KK·Filed 1993·Granted Aug 2, 1994·29 cites·33 claims
- 2164US5099166AVibration wave driven motorCANON KK·Filed 1989·Granted Mar 24, 1992·20 cites·7 claims
- 2264US2025118685A1Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2024·Application pending·0 cites
- 2364US2022020668A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2020·Application pending·0 cites
- 2463US4774538AFocus control method and cameraCANON KK·Filed 1986·Granted Sep 27, 1988·21 cites·18 claims
- 2562US4536057AFilter mounting mechanism for an optical assemblyCANON KK·Filed 1984·Granted Aug 20, 1985·17 cites·3 claims
- 2662US2025185281A1Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2024·Application pending·0 cites
- 2761US12165993B2Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2020·Granted Dec 10, 2024·0 cites·4 claims
- 2861US10416481B2Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2018·Granted Sep 17, 2019·0 cites·20 claims
- 2961US4747775ASkid beam for heating furnaces of walking beam typeKAWASAKI STEEL CO·Filed 1987·Granted May 31, 1988·10 cites·8 claims
- 3060US4743791AVibration wave motorCANON KK·Filed 1986·Granted May 10, 1988·16 cites·7 claims
- 3159US10475918B2Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2019·Granted Nov 12, 2019·0 cites·5 claims
- 3259US4963000ALens barrelCANON KK·Filed 1989·Granted Oct 16, 1990·19 cites·15 claims
- 3359US4320951AExtension tube for cameraCANON KK·Filed 1980·Granted Mar 23, 1982·6 cites·12 claims
- 3459US2024234413A9Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2023·Application pending·0 cites
- 3558US4609260AAutomatic focusing apparatus for zoom lensCANON KK·Filed 1984·Granted Sep 2, 1986·15 cites·5 claims
- 3657US4514039ALens mountingCANON KK·Filed 1982·Granted Apr 30, 1985·14 cites·4 claims
- 3757US2024038888A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2023·Application pending·0 cites
- 3857US2024170421A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2023·Application pending·0 cites
- 3956US2025259925A1Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2024·Application pending·0 cites
- 4055US10236371B2Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2017·Granted Mar 19, 2019·0 cites·15 claims
- 4155US6154613ADiaphragm device having full-open aperture diameter electrically varied according to zoomingCANON KK·Filed 1994·Granted Nov 28, 2000·7 cites·4 claims
- 4255US2024030131A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2023·Application pending·0 cites
- 4354US2015115323A1Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2014·Application pending·0 cites
- 4454US2025324718A1Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2025·Application pending·0 cites
- 4553US9941284B2Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2017·Granted Apr 10, 2018·0 cites·15 claims
- 4653US9564426B2Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2015·Granted Feb 7, 2017·0 cites·15 claims
- 4753US2024145553A1Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2022·Application pending·0 cites
- 4852US2023065925A1Semiconductor device and method of manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2022·Application pending·0 cites
- 4951US9748247B2Semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2016·Granted Aug 29, 2017·0 cites·13 claims
- 5050US4537536AProcess and apparatus of constructing a water tight underground pile wallSHIMIZU CONSTRUCTION CO LTD·Filed 1983·Granted Aug 27, 1985·18 cites·7 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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