Inventor · disambiguated record
Kazuo Ichikawa
Also filed as: ICHIKAWA KAZUO
40 granted patents·12 pending applications·700 citations·filing 1976–2024
98Inventor score
Top patents by PatentIndex Score
52 records- 0198USD318865SEarphoneSONY CORP·Filed 1989·Granted Aug 6, 1991·77 cites·1 claims
- 0297USD316551SHeadphoneSONY CORP·Filed 1988·Granted Apr 30, 1991·66 cites·1 claims
- 0391USD313020SRadio receiverSONY CORP·Filed 1988·Granted Dec 18, 1990·31 cites·1 claims
- 0490US8080190B2Method of molding a toner bottle using up to 8-sided recycled flakeICHIKAWA KAZUO·Filed 2007·Granted Dec 20, 2011·41 cites·10 claims
- 0584US11015549B1Cylinder blockMAZDA MOTOR·Filed 2020·Granted May 25, 2021·2 cites·19 claims
- 0684US9333072B2Intraocular lensCHUKYO MEDICAL CO INC·Filed 2014·Granted May 10, 2016·19 cites·15 claims
- 0784USD432116SSpeaker boxSONY CORP·Filed 1999·Granted Oct 17, 2000·29 cites·1 claims
- 0883US11002220B1Cylinder blockMAZDA MOTOR·Filed 2020·Granted May 11, 2021·2 cites·18 claims
- 0981US11248558B2EngineMAZDA MOTOR·Filed 2018·Granted Feb 15, 2022·1 cites·18 claims
- 1081US11118534B2Multi-cylinder engineMAZDA MOTOR·Filed 2018·Granted Sep 14, 2021·1 cites·20 claims
- 1180US10470873B2Intraocular lens and haptic for intraocular lensCHUKYO MEDICAL CO INC·Filed 2017·Granted Nov 12, 2019·6 cites·5 claims
- 1280US10271944B2Intraocularly-mounted object and intraocularly-mounted object holding memberCHUKYO MEDICAL CO INC·Filed 2016·Granted Apr 30, 2019·6 cites·7 claims
- 1380US10260451B2Heat insulation structure of combustion chamber of engineMAZDA MOTOR·Filed 2016·Granted Apr 16, 2019·1 cites·16 claims
- 1480USD352714SRadio receiverSONY CORP·Filed 1992·Granted Nov 22, 1994·21 cites·1 claims
- 1579US9488094B2Direct injection gasoline engine and method of controlling the direct injection gasoline engineYAMASHITA HIROYUKI·Filed 2012·Granted Nov 8, 2016·4 cites·14 claims
- 1678US10463385B2Surgical instrumentCHUKYO MEDICAL CO INC·Filed 2017·Granted Nov 5, 2019·3 cites·7 claims
- 1777US9445891B2Intraocular lensCHUKYO MEDICAL CO INC·Filed 2014·Granted Sep 20, 2016·9 cites·9 claims
- 1876US11806281B2Ophthalmic surgery instrumentCHUKYO MEDICAL CO INC·Filed 2021·Granted Nov 7, 2023·1 cites·15 claims
- 1976US4981482ADevice for forming an inserting hole for an endoscopeICHIKAWA KAZUO·Filed 1989·Granted Jan 1, 1991·135 cites·8 claims
- 2075US10478057B2Testing apparatus and testing methodCHUKYO MEDICAL CO INC·Filed 2018·Granted Nov 19, 2019·2 cites·8 claims
- 2174US5802194AStereo loudspeaker system with tweeters mounted on rotatable enlongated armsSONY CORP·Filed 1997·Granted Sep 1, 1998·61 cites·9 claims
- 2272US9326845B2Intraocular implant, intraocular implant set and intraocular lensCHUKYO MEDICAL CO INC·Filed 2014·Granted May 3, 2016·7 cites·9 claims
- 2369USD356568SSpeaker boxSONY CORP·Filed 1994·Granted Mar 21, 1995·13 cites·1 claims
- 2468US4780596AHot-air circulation cooking ovenTOSHIBA KK·Filed 1987·Granted Oct 25, 1988·32 cites·6 claims
- 2568US4312585AMethod and apparatus for treating graphic arts process photosensitive materialsFUJI PHOTO FILM CO LTD·Filed 1979·Granted Jan 26, 1982·11 cites·14 claims
- 2668US4031458AA.C. voltage regulator employing thyristorOLYMPUS OPTICAL CO·Filed 1976·Granted Jun 21, 1977·15 cites·2 claims
- 2766US10004591B2Intraocular lensCHUKYO MEDICAL CO INC·Filed 2014·Granted Jun 26, 2018·3 cites·9 claims
- 2864US9596985B2Color-viewing function measuring means and color-viewing function measurement systemUNIV SHINSHU·Filed 2013·Granted Mar 21, 2017·4 cites·9 claims
- 2961USD369806SCombined amplifier and speakersSONY CORP·Filed 1994·Granted May 14, 1996·10 cites·1 claims
- 3060US2024354939A1Image processing device, image processing method, and programKI MEDIC CO INC·Filed 2024·Application pending·0 cites
- 3152US11576814B2Ophthalmic instrumentCHUKYO MEDICAL CO INC·Filed 2020·Granted Feb 14, 2023·0 cites·2 claims
- 3252US10634247B2Piston structure for engineMAZDA MOTOR·Filed 2016·Granted Apr 28, 2020·0 cites·5 claims
- 3350US4969875ADrainage device for medical useICHIKAWA KAZUO·Filed 1989·Granted Nov 13, 1990·54 cites·2 claims
- 3450US2008305275A1CVD system and substrate cleaning methodCANON ANELVA CORP·Filed 2008·Application pending·0 cites
- 3549US2021186324A1Crystalline lens data obtaining method, ophthalmologic device, and storage mediumCHUKYO MEDICAL CO INC·Filed 2020·Application pending·0 cites
- 3648US2008044589A1CVD system and substrate cleaning methodANELVA CORP·Filed 2007·Application pending·0 cites
- 3748US2022378469A1Eyeball attachment tubeCHUKYO MEDICAL CO INC·Filed 2022·Application pending·0 cites
- 3847US2014194916A1Surgical instrumentCHUKYO MEDICAL CO INC·Filed 2012·Application pending·0 cites
- 3944US2023053481A1Visual target display device, visual target presentation method, and storage mediumCHUKYO MEDICAL CO INC·Filed 2022·Application pending·0 cites
- 4043US4754025AGlucosamine derivatives and reagent for assaying N-acetyl-β-D-glucosaminidase using the same as substrateMEIJI SEIKA KAISHA·Filed 1985·Granted Jun 28, 1988·6 cites·3 claims
- 4142USD320207SCombined tape player and radio tunerSONY CORP·Filed 1988·Granted Sep 24, 1991·3 cites·1 claims
- 4241US9489917B2Color perception tester, control program and method of controlling color perception testerICHIKAWA KAZUO·Filed 2011·Granted Nov 8, 2016·0 cites·21 claims
- 4341USD308678SCombined tape player and radio tunerSONY CORP·Filed 1987·Granted Jun 19, 1990·3 cites·1 claims
- 4441US2011249832A1Speaker deviceSONY CORP·Filed 2011·Application pending·0 cites
- 4540US2013148083A1Lens assessment device, control program and control method of lens assessment deviceICHIKAWA KAZUO·Filed 2011·Application pending·0 cites
- 4640US2017209041A1Color-viewing function measuring means and color-viewing function measurement systemICHIKAWA KAZUO·Filed 2017·Application pending·0 cites
- 4738US6149320APhotosensitive material processing apparatus and sealing structure for processing section of the apparatusFUJI PHOTO FILM CO LTD·Filed 1999·Granted Nov 21, 2000·6 cites·23 claims
- 4837US4006368AA.C. voltage regulator including bilateral thyristorOLYMPUS OPTICAL CO·Filed 1976·Granted Feb 1, 1977·3 cites·1 claims
- 4936US2005165436A1Vitreous body cutter, vitreous body surgical equipment using the cutter, and method for manufacturing vitreous body cutterTAKASHIMA SANGYO CORP·Filed 2004·Application pending·0 cites
- 5033US5797937AOphthalmologic knifeCANON STAAR CO INC·Filed 1996·Granted Aug 25, 1998·11 cites·11 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →