Inventor · disambiguated record
Akira Yoshikawa
Also filed as: AOTA KOUICHI · YOSHIKAWA AKIRA
65 granted patents·29 pending applications·962 citations·filing 1975–2024
98Inventor score
Files withFUKUDA KENTARO7UNIV TOHOKU7MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6NIPPON TELEGRAPH & TELEPHONE6PANASONIC CORP6
Top patents by PatentIndex Score
94 records- 0198US4367110ADecorative laminate and a manufacturing method thereforTOPPAN PRINTING CO LTD·Filed 1980·Granted Jan 4, 1983·158 cites·5 claims
- 0297US4320191APattern-forming processNIPPON TELEGRAPH & TELEPHONE·Filed 1979·Granted Mar 16, 1982·333 cites·2 claims
- 0391USD334581SIndustrial robotHITACHI LTD·Filed 1991·Granted Apr 6, 1993·44 cites·1 claims
- 0488US4396448ADecorative laminate and a manufacturing method thereforTOPPAN PRINTING CO LTD·Filed 1980·Granted Aug 2, 1983·81 cites·3 claims
- 0587US7608828B2Solid solution material of rare earth element fluoride (polycrystal and single crystal), and method for preparation thereof, and radiation detector and test deviceSTELLA CHEMIFA CORP·Filed 2005·Granted Oct 27, 2009·16 cites·27 claims
- 0685US9678223B2ScintillatorTOTSUKA DAISUKE·Filed 2012·Granted Jun 13, 2017·5 cites·10 claims
- 0785US8969812B2Garnet-type crystal for scintillator and radiation detector using the sameYOSHIKAWA AKIRA·Filed 2012·Granted Mar 3, 2015·9 cites·20 claims
- 0881US4127414APattern-forming materials having a radiation sensitive chalcogenide layer and a method of forming patterns with such materialsNIPPON TELEGRAPH & TELEPHONE·Filed 1977·Granted Nov 28, 1978·28 cites·3 claims
- 0980US7525883B2Optical disk apparatusPANASONIC CORP·Filed 2005·Granted Apr 28, 2009·4 cites·3 claims
- 1078US7323053B2Pulling-down apparatus and container thereforTDK CORP·Filed 2006·Granted Jan 29, 2008·4 cites·13 claims
- 1177US10137496B2Metal wire rod composed of iridium or iridium alloyTANAKA PRECIOUS METAL IND·Filed 2015·Granted Nov 27, 2018·1 cites·7 claims
- 1277US9388337B2Metal fluoride crystal, light emitting element, scintillator, method of detecting neutron, and method of producing metal fluoride crystalUNIV TOHOKU·Filed 2013·Granted Jul 12, 2016·1 cites·9 claims
- 1377US7882513B2Optical disc device and method for controlling optical disc devicePANASONIC CORP·Filed 2006·Granted Feb 1, 2011·3 cites·32 claims
- 1476US7969844B2Optical disc devicePANASONIC CORP·Filed 2007·Granted Jun 28, 2011·3 cites·19 claims
- 1575US8642972B2Neutron scintillator and neutron detectorFUKUDA KENTARO·Filed 2011·Granted Feb 4, 2014·5 cites·11 claims
- 1675US8044367B2Scintillator for neutron detection and neutron detectorTOKUYAMS CORP·Filed 2009·Granted Oct 25, 2011·14 cites·7 claims
- 1773US7864638B2Optical disk apparatusPANASONIC CORP·Filed 2005·Granted Jan 4, 2011·2 cites·5 claims
- 1873US6968079B2Investigation device and investigation methodHITACHI LTD·Filed 2001·Granted Nov 22, 2005·20 cites·10 claims
- 1972US5330118ATape driving apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jul 19, 1994·18 cites·7 claims
- 2071US10011770B2Crystal material, method for manufacturing crystal, radiation detector, nondestructive inspection apparatus, and imaging apparatusUNIV TOHOKU·Filed 2016·Granted Jul 3, 2018·2 cites·17 claims
- 2170US10734225B2Nitride semiconductor substrate and method for manufacturing sameASAHI CHEMICAL IND·Filed 2017·Granted Aug 4, 2020·1 cites·20 claims
- 2270US8729482B2Radiation detectorTOKUYAMA CORP·Filed 2013·Granted May 20, 2014·3 cites·7 claims
- 2370US4615782AIntermediate layer material of three-layer resist system and method of forming resist patternNIPPON TELEGRAPH & TELEPHONE·Filed 1985·Granted Oct 7, 1986·32 cites·13 claims
- 2469US8933408B2Colquiriite-type crystal, scintillator for neutron detection and neutron detectorISHIZU SUMITO·Filed 2011·Granted Jan 13, 2015·1 cites·5 claims
- 2569US4042936AElectrosensitive recording methodFUJI XEROX CO LTD·Filed 1975·Granted Aug 16, 1977·13 cites·2 claims
- 2667US9810792B2Crystal material, radiation detector, imaging apparatus, nondestructive inspection apparatus, and lighting apparatusUNIV TOHOKU·Filed 2013·Granted Nov 7, 2017·1 cites·13 claims
- 2766US12044812B2Scintillator and radiation detectorMITSUBISHI CHEM CORP·Filed 2023·Granted Jul 23, 2024·0 cites·19 claims
- 2864US11939504B2Scintillator and radiation detectorMITSUBISHI CHEM CORP·Filed 2022·Granted Mar 26, 2024·0 cites·17 claims
- 2964US4434224AMethod of pattern formationNIPPON TELEGRAPH & TELEPHONE·Filed 1982·Granted Feb 28, 1984·28 cites·18 claims
- 3063US4753047ATransferring and loading device for honeycomb structuresNGK INSULATORS LTD·Filed 1986·Granted Jun 28, 1988·14 cites·4 claims
- 3163US4738916AIntermediate layer material of three-layer resist systemNIPPON TELEGRAPH & TELEPHONE·Filed 1986·Granted Apr 19, 1988·25 cites·11 claims
- 3263US4350541ADoping from a photoresist layerNIPPON TELEGRAPH & TELEPHONE·Filed 1980·Granted Sep 21, 1982·27 cites·22 claims
- 3361US11637221B2Nitride semiconductor element, nitride semiconductor light emitting element, ultraviolet light emitting elementASAHI CHEMICAL IND·Filed 2020·Granted Apr 25, 2023·0 cites·11 claims
- 3459US7947192B2Gallate single crystal, process for producing the same, piezoelectric device for high-temperature use and piezoelectric sensor for high-temperature useFUKUDA CRYSTAL LAB·Filed 2006·Granted May 24, 2011·1 cites·5 claims
- 3558US7266073B2Optical disc apparatus, camera apparatus, and method for controlling light emission operationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 4, 2007·4 cites·26 claims
- 3658US7242648B2Tracking error signal generation device, optical disc apparatus, tracking error signal generation method and tracking control methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 10, 2007·3 cites·1 claims
- 3758US4193680ATransfer sheet drying device for electrophotographic copying machineRANK XEROX LTD·Filed 1977·Granted Mar 18, 1980·8 cites·3 claims
- 3858US2025129450A1Composition, and resistance heating elementUNIV TOHOKU·Filed 2024·Application pending·0 cites
- 3957US10937928B2Nitride semiconductor element, nitride semiconductor light emitting element, ultraviolet light emitting elementASAHI CHEMICAL IND·Filed 2018·Granted Mar 2, 2021·0 cites·30 claims
- 4057US9834858B2Pr-containing scintillator single crystal, method of manufacturing the same, radiation detector, and inspection apparatusYOSHIKAWA AKIRA·Filed 2005·Granted Dec 5, 2017·1 cites·12 claims
- 4157US7480218B2Optical disk control device with focal point movement controlPANASONIC CORP·Filed 2004·Granted Jan 20, 2009·3 cites·5 claims
- 4256US7032487B2Corrugated fin cutting device and cutting methodCALSONIC KANSEI CORP·Filed 2004·Granted Apr 25, 2006·6 cites·2 claims
- 4354US9118011B2Langasite-type oxide material, method for producing same, and raw material used in the production methodONODERA KO·Filed 2011·Granted Aug 25, 2015·0 cites·8 claims
- 4454US7800987B2Optical pickup driving apparatus and optical pickup beam spot positioning methodPANASONIC CORP·Filed 2004·Granted Sep 21, 2010·2 cites·29 claims
- 4554US7276680B2Control unit and optical disk drive including the control unitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Oct 2, 2007·2 cites·9 claims
- 4654US5400980ATape driving apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 28, 1995·8 cites·12 claims
- 4753US2023218249A1Signal Processing System, Positron Emission Tomography Device, and Positron Emission Tomography MethodMITSUBISHI CHEM CORP·Filed 2023·Application pending·0 cites
- 4852US5009038AAutomatic chamfering machineNKG INSULATORS LTD·Filed 1990·Granted Apr 23, 1991·17 cites·2 claims
- 4952US2022363987A1Scintillator and Radiation DetectorMITSUBISHI CHEM CORP·Filed 2022·Application pending·0 cites
- 5051US7347956B2Luminous material for scintillator comprising single crystal of Yb mixed crystal oxideJAPAN SCIENCE & TECH AGENCY·Filed 2003·Granted Mar 25, 2008·4 cites·3 claims
Showing the top 50 of 94 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →