Inventor · disambiguated record
Yasuyuki Okada
Also filed as: OKADA YASUYUKI
45 granted patents·9 pending applications·1,466 citations·filing 1979–2022
98Inventor score
Files withHITACHI LTD18MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9HITACHI GLOBAL STORAGE TECH8MITSUBISHI ELECTRIC CORP4HITACHI METALS LTD2
Top patents by PatentIndex Score
54 records- 0198US7532433B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted May 12, 2009·51 cites·14 claims
- 0296US4809345AMethod of and apparatus for enlarging/reducing two-dimensional imagesHITACHI LTD·Filed 1986·Granted Feb 28, 1989·142 cites·28 claims
- 0396US4785296AMethod and system for displaying image dataHITACHI LTD·Filed 1987·Granted Nov 15, 1988·163 cites·9 claims
- 0496US4574364AMethod and apparatus for controlling image displayHITACHI LTD·Filed 1982·Granted Mar 4, 1986·171 cites·10 claims
- 0594US8093886B2Rotation-angle-detecting apparatusOKADA YASUYUKI·Filed 2010·Granted Jan 10, 2012·39 cites·4 claims
- 0694US7426091B2Magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Sep 16, 2008·16 cites·11 claims
- 0793US7221538B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 22, 2007·30 cites·21 claims
- 0893US7057853B2Magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jun 6, 2006·37 cites·27 claims
- 0992US4692757AMultimedia display systemHITACHI LTD·Filed 1983·Granted Sep 8, 1987·87 cites·4 claims
- 1091US7859797B2Magnetoresistive head and magnetic storage apparatusHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Dec 28, 2010·12 cites·18 claims
- 1191US4839787AIntegrated high voltage generating systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Jun 13, 1989·87 cites·9 claims
- 1291US4610026AMethod of and apparatus for enlarging/reducing two-dimensional imagesHITACHI LTD·Filed 1983·Granted Sep 2, 1986·56 cites·20 claims
- 1390US6035414AReliability of crossbar switches in an information processing systemHITACHI LTD·Filed 1997·Granted Mar 7, 2000·149 cites·15 claims
- 1484US9250301B2EncoderOKADA YASUYUKI·Filed 2012·Granted Feb 2, 2016·6 cites·5 claims
- 1584US6546471B1Shared memory multiprocessor performing cache coherencyHITACHI LTD·Filed 2000·Granted Apr 8, 2003·34 cites·4 claims
- 1683US7813079B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Oct 12, 2010·3 cites·10 claims
- 1779US8054067B2Magnetic sensor and rotation-angle-detecting apparatus with a bridge circuitHITACHI METALS LTD·Filed 2009·Granted Nov 8, 2011·8 cites·14 claims
- 1878US7443636B2Magnetic head having layered film with tilted crystalline grain structureHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Oct 28, 2008·3 cites·9 claims
- 1977US6088770AShared memory multiprocessor performing cache coherencyHITACHI LTD·Filed 1998·Granted Jul 11, 2000·67 cites·11 claims
- 2076US7656611B2Laminated high moment magnetic films antiferromagnetic coupling as write pole of perpendicular magnetic recording headHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Feb 2, 2010·11 cites·23 claims
- 2176US7400137B1Magnetic encoder having a stable output property with unsaturated magnetic sensorHITACHI METALS LTD·Filed 2007·Granted Jul 15, 2008·8 cites·13 claims
- 2273US6378021B1Switch control method and apparatus in a system having a plurality of processorsHITACHI LTD·Filed 1999·Granted Apr 23, 2002·77 cites·27 claims
- 2373US5200762AImage forming apparatusRICOH KK·Filed 1991·Granted Apr 6, 1993·33 cites·13 claims
- 2470US6795272B2Thin film magnetic head and magnetic storage apparatusHITACHI LTD·Filed 2002·Granted Sep 21, 2004·6 cites·10 claims
- 2570US6723449B2Structure and plating method of thin film magnetic head and magnetic storage apparatusHITACHI LTD·Filed 2001·Granted Apr 20, 2004·12 cites·5 claims
- 2668US6801062B2Output circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 5, 2004·10 cites·9 claims
- 2765US6794063B2Thin film magnetic head and method of fabricating the headHITACHI LTD·Filed 2002·Granted Sep 21, 2004·5 cites·8 claims
- 2864US4511962AMemory control unitHITACHI LTD·Filed 1982·Granted Apr 16, 1985·33 cites·13 claims
- 2963US8085499B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itKAWATO YOSHIAKI·Filed 2010·Granted Dec 27, 2011·1 cites·7 claims
- 3060US7105933B2Semiconductor integrated circuit device and manufacturing method of the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 12, 2006·9 cites·7 claims
- 3158US7491986B2Semiconductor integrated circuit devicePANASONIC CORP·Filed 2003·Granted Feb 17, 2009·13 cites·5 claims
- 3256US6131169AReliability of crossbar switches in an information processing systemHITACHI LTD·Filed 1999·Granted Oct 10, 2000·25 cites·4 claims
- 3353US2025251464A1Equipment diagnosis device and equipment diagnosis systemMITSUBISHI ELECTRIC CORP·Filed 2022·Application pending·0 cites
- 3450US2025012877A1Magnetic particle imaging device, magnetic particle imaging method, and storage medium storing magnetic particle imaging programMITSUBISHI ELECTRIC CORP·Filed 2021·Application pending·0 cites
- 3549US4279004AMethod for controlling rotary memory deviceHITACHI LTD·Filed 1979·Granted Jul 14, 1981·7 cites·3 claims
- 3649US2024250595A1Power generation moduleMITSUBISHI ELECTRIC CORP·Filed 2021·Application pending·0 cites
- 3749US2024288260A1Alignment direction detection deviceMITSUBISHI ELECTRIC CORP·Filed 2021·Application pending·0 cites
- 3848US10335744B2Method of producing flat sheet membrane element and flat sheet membrane elementKUBOTA KK·Filed 2015·Granted Jul 2, 2019·0 cites·5 claims
- 3948US7106608B2Priority circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 12, 2006·3 cites·5 claims
- 4048US4825018AVoltage detection circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Apr 25, 1989·11 cites·7 claims
- 4147US2005007698A1Thin film magnetic head and magnetic storage apparatusFiled 2004·Application pending·0 cites
- 4246US7150819B2Structure and plating method of thin film magnetic head and magnetic storage apparatusHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Dec 19, 2006·0 cites·4 claims
- 4346US6122285AData transfer method using ring connection and information processing system using ring connectionHITACHI LTD·Filed 1997·Granted Sep 19, 2000·20 cites·12 claims
- 4443US2006292713A1Semiconductor integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
- 4542US7154919B2Optical fiber laser and laser light emitting methodFUJIKURA LTD·Filed 2004·Granted Dec 26, 2006·0 cites·11 claims
- 4641US4979088AIntegrated high voltage generating systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Dec 18, 1990·8 cites·5 claims
- 4740US2024036233A1Reflection preventing structureOTSUKA TECHNO CORP·Filed 2019·Application pending·0 cites
- 4837US7667520B2Level shift device having reduced error in the duty ratio of the output signalPANASONIC CORP·Filed 2007·Granted Feb 23, 2010·0 cites·6 claims
- 4937US2005139987A1Semiconductor integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 5036US11493669B2Anti-reflective body, camera unit, mobile device, and method for manufacturing anti-reflective bodyOTSUKA TECHNO CORP·Filed 2017·Granted Nov 8, 2022·0 cites·13 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →