Inventor · disambiguated record
Takashi Hikosaka
Also filed as: HIKOSAKA TAKASHI · SHIMIZU SHIGEMITSU · YAMAMOTO SHUNJI
40 granted patents·8 pending applications·793 citations·filing 1974–2008
98Inventor score
Top patents by PatentIndex Score
48 records- 0197US3997262AElectrophotographic copying apparatusMINOLTA CAMERA KK·Filed 1974·Granted Dec 14, 1976·52 cites·5 claims
- 0293US6754020B1Magnetic recording media and magnetic recording/reproduction apparatusesTOSHIBA KK·Filed 2000·Granted Jun 22, 2004·41 cites·24 claims
- 0393US4178092AElectrophotographic copying apparatus with gas evacuating meansMINOLTA CAMERA KK·Filed 1977·Granted Dec 11, 1979·41 cites·4 claims
- 0492US6699600B2Magnetic recording medium, method of manufacture therefor, and apparatus for magnetic recording and reproducing recordingsSHOWA DENKO KK·Filed 2002·Granted Mar 2, 2004·38 cites·16 claims
- 0592US6682826B2Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatusSHOWA DENKO KK·Filed 2002·Granted Jan 27, 2004·40 cites·14 claims
- 0692US5486967AMagnetic disk memory systemTOSHIBA KK·Filed 1994·Granted Jan 23, 1996·68 cites·20 claims
- 0791US6713197B2Perpendicular magnetic recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2001·Granted Mar 30, 2004·30 cites·18 claims
- 0888US7166376B2Magnetic recording medium including a high-magnetostriction layer and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2004·Granted Jan 23, 2007·23 cites·15 claims
- 0987US7083870B2Magnetic recording medium, method of manufacturing the same, and magnetic recording and reproduction apparatusTOSHIBA KK·Filed 2003·Granted Aug 1, 2006·22 cites·7 claims
- 1087US5942342APerpendicular recording medium and magnetic recording apparatusTOSHIBA KK·Filed 1997·Granted Aug 24, 1999·82 cites·19 claims
- 1183US6548194B2Perpendicular magnetic recording medium and a magnetic reproducing apparatusTOSHIBA KK·Filed 2001·Granted Apr 15, 2003·17 cites·8 claims
- 1280US7166375B2Magnetic recording medium utilizing a multi-layered soft magnetic underlayer, method of producing the same and magnetic recording and reproducing deviceTOSHIBA KK·Filed 2001·Granted Jan 23, 2007·14 cites·26 claims
- 1380US7105239B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the sameSHOWA DENKO KK·Filed 2002·Granted Sep 12, 2006·13 cites·20 claims
- 1480US6846581B2Perpendicular magnetic recording medium and magnetic recording-reproducing apparatus using the sameTOSHIBA KK·Filed 2002·Granted Jan 25, 2005·14 cites·28 claims
- 1580US6620533B2Magnetic recording mediumTOSHIBA KK·Filed 2001·Granted Sep 16, 2003·14 cites·16 claims
- 1679US6128166AMagnetic head for increasing track density of a magnetic diskTOSHIBA KK·Filed 1995·Granted Oct 3, 2000·33 cites·18 claims
- 1778US7132176B2Perpendicular magnetic recording medium and magnetic recording/reproduction apparatusSHOWA DENKO KK·Filed 2003·Granted Nov 7, 2006·12 cites·18 claims
- 1878US5981054AMagnetic recording medium and method for manufacturing the sameTOSHIBA KK·Filed 1997·Granted Nov 9, 1999·37 cites·18 claims
- 1977US6942936B2Perpendicular magnetic recording medium and magnetic recording/reproduction apparatusSHOWA DENKO KK·Filed 2003·Granted Sep 13, 2005·11 cites·22 claims
- 2076US6884519B2Magnetic recording medium, including an HCP structured Ni-alloy control film method of manufacture therefor, and magnetic read/write apparatusTOSHIBA CORP·Filed 2002·Granted Apr 26, 2005·11 cites·10 claims
- 2176US5830569AMagnetic recording medium containing CoPtO-based alloy magnetic filmTOSHIBA KK·Filed 1997·Granted Nov 3, 1998·26 cites·25 claims
- 2274US7141316B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatusSHOWA DENKO KK·Filed 2004·Granted Nov 28, 2006·9 cites·13 claims
- 2373US4762742APerpendicular magnetic recording mediumTOSHIBA KK·Filed 1986·Granted Aug 9, 1988·18 cites·7 claims
- 2472US6902835B2Perpendicular magnetic recording medium and magnetic recording apparatusSHOWA DENKO KK·Filed 2003·Granted Jun 7, 2005·8 cites·24 claims
- 2571US5792564APerpendicular recording medium and magnetic recording apparatusTOSHIBA KK·Filed 1995·Granted Aug 11, 1998·34 cites·12 claims
- 2670US4045135AElectrophotographic copying apparatus with retractable image transfer roller meansMINOLTA CAMERA KK·Filed 1975·Granted Aug 30, 1977·13 cites·3 claims
- 2768US7138194B2Magnetic recording medium, method of manufacture therefor, and magnetic read/write apparatusTOSHIBA KK·Filed 2003·Granted Nov 21, 2006·6 cites·15 claims
- 2865US7289298B2Perpendicular magnetic recording medium, method for manufacturing the same, and magnetic recording/reproducing apparatusSHOWA DENKO KK·Filed 2004·Granted Oct 30, 2007·5 cites·10 claims
- 2965US7056606B2Magnetic recording medium, method manufacture therefor, and apparatus for magnetic reproducing and reproducing recordingsTOSHIBA KK·Filed 2004·Granted Jun 6, 2006·5 cites·4 claims
- 3062US6670056B2Perpendicular magnetic recording medium and magnetic read/write apparatusTOSHIBA KK·Filed 2001·Granted Dec 30, 2003·17 cites·10 claims
- 3159US7141315B2Magnetic recording medium, method of manufacturing the same, and magnetic recording and reproduction apparatusTOSHIBA KK·Filed 2003·Granted Nov 28, 2006·3 cites·17 claims
- 3258US6723458B2Magnetic recording medium, method of manufacture therefor, and magnetic read/write apparatusSHOWA DENKO KK·Filed 2002·Granted Apr 20, 2004·14 cites·7 claims
- 3353US2009116142A1Disk deviceDENSO CORP·Filed 2008·Application pending·0 cites
- 3452US7252896B2Magnetic recording medium and magnetic recording/reproducing apparatusSHOWA DENKO KK·Filed 2004·Granted Aug 7, 2007·1 cites·26 claims
- 3551US7033684B2Magnetic recording medium, method of manufacture thereof, and magnetic read/write apparatusTOSHIBA KK·Filed 2003·Granted Apr 25, 2006·1 cites·22 claims
- 3649US2007111035A1Magnetic recording medium, method of producing the same and magnetic recording and reproducing deviceTOSHIBA KK·Filed 2006·Application pending·0 cites
- 3745US2004058197A1Perpendicular magnetic recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2003·Application pending·0 cites
- 3842US4235548AElectrostatic latent image transfer type copying apparatusMINOLTA CAMERA KK·Filed 1979·Granted Nov 25, 1980·4 cites·15 claims
- 3942US2008057348A1Magnetic Recording Medium, Method Of Manufacturing Therefor, And Magnetic Read/Write ApparatusSHIMIZU KENJI·Filed 2004·Application pending·0 cites
- 4041US5909341AHard disk driveTOSHIBA KK·Filed 1998·Granted Jun 1, 1999·4 cites·1 claims
- 4141US5825596AHard disk driveTOSHIBA KK·Filed 1997·Granted Oct 20, 1998·4 cites·14 claims
- 4241US2004106010A1Perpendicular magnetic recording medium, manufacturing method thereof, and magnetic recording-reproducing apparatusTOSHIBA KK·Filed 2003·Application pending·0 cites
- 4340US5434014AMagnetic recording medium and method of manufacturing sameTOSHIBA KK·Filed 1993·Granted Jul 18, 1995·7 cites·20 claims
- 4438US2003017370A1Magnetic recording medium, method of manufacturing therefor and magnetic replay apparatusSHOWA DENKO KK·Filed 2002·Application pending·0 cites
- 4538US2002058160A1Perpendicular magnetic recording mediumFiled 2001·Application pending·0 cites
- 4637US2003096127A1Perpendicular magnetic recording medium and magneticFiled 2002·Application pending·0 cites
- 4731US6805981B2Perpendicular magnetic recording medium and perpendicular magnetic recording-reproducing apparatusTOSHIBA KK·Filed 2001·Granted Oct 19, 2004·0 cites·18 claims
- 4829US4057339AElectrostatic latent image transfer type copying apparatusMINOLTA CAMERA KK·Filed 1975·Granted Nov 8, 1977·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →