Inventor · disambiguated record
Kazuyoshi Ishii
Also filed as: ISHII KAZUYOSHI
40 granted patents·3 pending applications·464 citations·filing 1985–2016
98Inventor score
Top patents by PatentIndex Score
43 records- 0186US6614731B2Method and apparatus for recording magnetic domain having an arc shape convex in a forward scanning direction of a magneto-optical recording mediumCANON KK·Filed 2001·Granted Sep 2, 2003·20 cites·3 claims
- 0282US7729213B2Optical disk apparatus employing an objective lens having a high numerical apertureCANON KK·Filed 2005·Granted Jun 1, 2010·4 cites·6 claims
- 0381US7570546B2Optical pick-up and optical disk deviceCANON KK·Filed 2006·Granted Aug 4, 2009·4 cites·6 claims
- 0481US5615183AMagnetic head used in magnetooptical recordingCANON KK·Filed 1995·Granted Mar 25, 1997·35 cites·12 claims
- 0579US6909673B2Magneto-optical recording apparatus having a magnetic head with a regulating memberCANON KK·Filed 2003·Granted Jun 21, 2005·14 cites·5 claims
- 0679US5485433AInformation recording method and apparatus for determining whether recording has been correctly performedCANON KK·Filed 1992·Granted Jan 16, 1996·31 cites·35 claims
- 0778US6584045B1High speed magnetic coil for magneto-optical headCANON KK·Filed 1999·Granted Jun 24, 2003·34 cites·24 claims
- 0874US5661612AMagnetic head driving device and magnetooptical recording apparatusCANON KK·Filed 1994·Granted Aug 26, 1997·27 cites·14 claims
- 0970US7515356B2Optical disk apparatus with protection member for objective lensCANON KK·Filed 2006·Granted Apr 7, 2009·1 cites·6 claims
- 1070US4695904AInformation signal recording disc recorded with an end signal for selectively preventing unwanted access to predetermined recorded information and disc reproducing apparatus thereforVICTOR COMPANY OF JAPAN·Filed 1985·Granted Sep 22, 1987·19 cites·11 claims
- 1169US6773374B2Brake negative pressure control apparatus and method, and engine control unit for internal combustion engineHONDA MOTOR CO LTD·Filed 2002·Granted Aug 10, 2004·12 cites·12 claims
- 1268US5377055ACircuit apparatus for driving a magnetic headCANON KK·Filed 1993·Granted Dec 27, 1994·17 cites·27 claims
- 1367US6466523B1Displacement of magnetic head and optical head in magneto-optical recording apparatusCANON KK·Filed 2000·Granted Oct 15, 2002·6 cites·12 claims
- 1467US4707733AInformation signal recording disc comprising a connected region formed between parallel program recorded and single program recorded regions, and reproducing apparatus thereforVICTOR COMPANY OF JAPAN·Filed 1985·Granted Nov 17, 1987·17 cites·5 claims
- 1565US6298015B1Magneto-optical reproducing method using a magnified magnetic domainCANON KK·Filed 1999·Granted Oct 2, 2001·17 cites·8 claims
- 1664US6041024ASignal reproducing apparatus utilizing displacement of magnetic wallCANON KK·Filed 1997·Granted Mar 21, 2000·17 cites·12 claims
- 1764US5689478AMagnetic head for magneto-optical recording and magneto-optical recording apparatus in which a magnetic core mounted to a slider has particular dimensions and propertiesCANON KK·Filed 1995·Granted Nov 18, 1997·17 cites·26 claims
- 1863US5703839AMagnetic head for magnetooptical recording apparatusCANON KK·Filed 1995·Granted Dec 30, 1997·16 cites·16 claims
- 1963US5550796AMagnetic head and magneto-optical recording apparatusCANON KK·Filed 1995·Granted Aug 27, 1996·16 cites·6 claims
- 2062US5434831AMagneto-optical recording apparatus capable of both magnetic modulation and light modulation recordingCANON KK·Filed 1994·Granted Jul 18, 1995·13 cites·44 claims
- 2160US5991242AMagnetic head drive device, and magneto-optical recording apparatus using the sameCANON KK·Filed 1998·Granted Nov 23, 1999·14 cites·8 claims
- 2260US5586091AMagnetooptical recording apparatus including a control circuit for driving a switch element between on and off states in accordance with an error detectionCANON KK·Filed 1994·Granted Dec 17, 1996·12 cites·14 claims
- 2359US5574702AMagnetic head current control circuit for use in a magnetic head drive device, and magnetic/magnetooptical recording apparatus using the sameCANON KK·Filed 1994·Granted Nov 12, 1996·11 cites·15 claims
- 2459US5523986AMagnetic head for magnetooptical recording and method for producing the sameCANON KK·Filed 1995·Granted Jun 4, 1996·13 cites·8 claims
- 2558US5687141AMethod and apparatus for recording information on magnetooptical recording medium while canceling external stray magnetic fieldCANON KK·Filed 1994·Granted Nov 11, 1997·11 cites·27 claims
- 2658US5559763AMagnetic head driving device and magnetooptical recording apparatus with acceleration coil for shortening current inversion timeCANON KK·Filed 1993·Granted Sep 24, 1996·13 cites·34 claims
- 2757US7333402B2Magneto-optical head support structuresCANON KK·Filed 2004·Granted Feb 19, 2008·2 cites·4 claims
- 2854US7839730B2Optical pickup and optical disk drive apparatusCANON KK·Filed 2008·Granted Nov 23, 2010·0 cites·4 claims
- 2954US5563853AMagneto-optical recording apparatus that compensates for magnetic fields leaking from an objective lens actuator and a linear motorCANON KK·Filed 1995·Granted Oct 8, 1996·11 cites·18 claims
- 3053US7796313B2Holographic information recording-reproducing process and apparatus thereforCANON KK·Filed 2007·Granted Sep 14, 2010·0 cites·3 claims
- 3152US7804745B2Optical pickup and optical disk deviceCANON KK·Filed 2007·Granted Sep 28, 2010·0 cites·3 claims
- 3251US6529448B1High speed magnetic coil for magneto-optical headCANON KK·Filed 1999·Granted Mar 4, 2003·10 cites·41 claims
- 3350US7855939B2Optical disc apparatus employing an objective lens having a high numerical apertureCANON KK·Filed 2010·Granted Dec 21, 2010·0 cites·1 claims
- 3449US9885675B2Ionizing radiation detection apparatusCANON KK·Filed 2016·Granted Feb 6, 2018·0 cites·8 claims
- 3549US5627804AMagneto-optical recording apparartus including a magnetic head having a core composed of a single crystal ferrite materialCANON KK·Filed 1996·Granted May 6, 1997·8 cites·36 claims
- 3649US5579293AMagnetic head driving circuit for controlling switching operations in a magnetooptical recording apparatusCANON KK·Filed 1995·Granted Nov 26, 1996·10 cites·19 claims
- 3746US5986976AMagnetooptical recording head for a recording apparatus including a laminated core having a plurality of magnetic thin films sandwiching insulating films therebetweenCANON KK·Filed 1996·Granted Nov 16, 1999·7 cites·60 claims
- 3843US6314060B1Magnetic head for magneto-optic recording, and magneto-optic recording apparatusCANON KK·Filed 1999·Granted Nov 6, 2001·5 cites·36 claims
- 3940US6805901B2Magnetic domain wall displacement type magneto-optical medium and method for manufacturing the sameCANON KK·Filed 2001·Granted Oct 19, 2004·0 cites·8 claims
- 4040US6477119B2Magnetic head drive circuit including paired auxiliary coils, paired switching elements, and switch element control circuit, and magneto-optical recording device using the sameCANON KK·Filed 2000·Granted Nov 5, 2002·0 cites·9 claims
- 4139US2003007428A1Magnetic head for magneto-optical recording and magneto-optical recording apparatus for magnetic field modulation methodCANON KK·Filed 2002·Application pending·0 cites
- 4238US2016341833A1Radiation detection apparatusCANON KK·Filed 2016·Application pending·0 cites
- 4335US2016291174A1Charged particle detecting device and gamma cameraCANON KK·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →