Inventor · disambiguated record
Toshihiro Sugaya
Also filed as: SUGAYA TOSHIHIRO
38 granted patents·5 pending applications·963 citations·filing 1983–2013
98Inventor score
Top patents by PatentIndex Score
43 records- 0198US6477649B2Information recording apparatus, information reproducing apparatus, and information distribution systemTOSHIBA KK·Filed 1998·Granted Nov 5, 2002·156 cites·35 claims
- 0298US5459712AOptical disk and optical disk apparatus where information is recorded having a specific track pitch and as a plurality of pit trains, each including a plurality of substantially trapezoidal pitsTOSHIBA KK·Filed 1994·Granted Oct 17, 1995·106 cites·15 claims
- 0397US6850469B2Information recording medium with index headerTOSHIBA KK·Filed 2001·Granted Feb 1, 2005·71 cites·23 claims
- 0495US4631606ASystem for detecting the position of a read-write head on a disk recording medium having servo sectors with three or more servo patternsTOKYO SHIBAURA ELECTRIC CO·Filed 1984·Granted Dec 23, 1986·50 cites·7 claims
- 0591US7343495B2Information recording apparatus, information reproducing apparatus, and information distribution systemTOSHIBA KK·Filed 2002·Granted Mar 11, 2008·26 cites·10 claims
- 0691US5513164AOptical recording and reproducing apparatusTOSHIBA KK·Filed 1995·Granted Apr 30, 1996·61 cites·30 claims
- 0790US4636885AServo system for a magnetic disk memory having spiral tracksTOSHIBA KK·Filed 1985·Granted Jan 13, 1987·44 cites·6 claims
- 0889US6301208B1Optical disk having radial lands and grooves, and boundary recognition marks, and optical disk apparatus for emitting a light beam to an optical disk having a plurality of error correction blocks after boundary recognition marksTOSHIBA KK·Filed 1998·Granted Oct 9, 2001·57 cites·21 claims
- 0986US6898171B1Information recording medium with index headerTOSHIBA KK·Filed 2000·Granted May 24, 2005·20 cites·29 claims
- 1086US4737869AMagnetic disk having data area and index servo area and servo system for positioning read/write head on magnetic diskTOSHIBA KK·Filed 1986·Granted Apr 12, 1988·35 cites·13 claims
- 1185US5475210ANoise reduction system for optical record and reproduction apparatus using auto-power controlled semiconductor laser deviceTOSHIBA KK·Filed 1993·Granted Dec 12, 1995·39 cites·32 claims
- 1281US7821908B2Optical disc, optical disc apparatus, and optical disc reproducing methodTOSHIBA KK·Filed 2005·Granted Oct 26, 2010·5 cites·6 claims
- 1379US7652967B2Single-sided triple layer optical discTOSHIBA KK·Filed 2006·Granted Jan 26, 2010·4 cites·8 claims
- 1479US4499511ASystem for detecting position of a read-write head in seek operation on a disk memory having data servo spectorsTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Feb 12, 1985·21 cites·9 claims
- 1576US5661711AOptical recording and reproducing apparatusTOSHIBA KK·Filed 1996·Granted Aug 26, 1997·24 cites·16 claims
- 1674USRE38643EOptical disk having specified track pitch, and optical disk apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 2001·Granted Nov 2, 2004·12 cites·14 claims
- 1774US4964009AMagnetic disk having an index area and a limited number of radially extending servo sectionsTOSHIBA KK·Filed 1989·Granted Oct 16, 1990·16 cites·3 claims
- 1873US4851933AMagnetic disk apparatus having magnetic head with pre-erase gapTOSHIBA KK·Filed 1987·Granted Jul 25, 1989·19 cites·12 claims
- 1972US7570566B2Optical disc, optical disc manufacturing method, and optical disc apparatusTOSHIBA KK·Filed 2006·Granted Aug 4, 2009·2 cites·5 claims
- 2072US6592645B1Method for producing fine powder of metallic nickel comprised of fine spherical particlesSAKAI CHEMICAL INDUSTRY CO·Filed 2000·Granted Jul 15, 2003·18 cites·12 claims
- 2171US5602825AOptical disk and optical disk apparatusTOSHIBA KK·Filed 1995·Granted Feb 11, 1997·20 cites·24 claims
- 2268US5021898AHead positioning control method and apparatusTOSHIBA KK·Filed 1988·Granted Jun 4, 1991·15 cites·15 claims
- 2367US7477592B2Optical disc, optical disc apparatus, optical disk reproducing method, and digital work publicationTOSHIBA KK·Filed 2005·Granted Jan 13, 2009·1 cites·10 claims
- 2467US5278712ARemovable disk drive having two heads formed with a gimbal structureTOSHIBA KK·Filed 1991·Granted Jan 11, 1994·16 cites·14 claims
- 2566US7190663B2Optical recording medium, information reproduction apparatus, and information recording/reproduction apparatusTOSHIBA KK·Filed 2002·Granted Mar 13, 2007·5 cites·13 claims
- 2663US5777981AOptical disk with sectional trapezoidal pits and optical disk apparatusTOSHIBA KK·Filed 1997·Granted Jul 7, 1998·14 cites·48 claims
- 2762US7747871B2Information recording apparatus, information reproducing apparatus, and information distribution systemTOSHIBA KK·Filed 2002·Granted Jun 29, 2010·3 cites·11 claims
- 2862US5250796ANoise reduction system for optical record and reproduction apparatus using auto-power controlled semiconductor laser deviceTOSHIBA KK·Filed 1992·Granted Oct 5, 1993·13 cites·25 claims
- 2959US6487163B1Optical disk and optical disk apparatusTOSHIBA KK·Filed 1999·Granted Nov 26, 2002·13 cites·16 claims
- 3059US5012372AHead access mechanism for moving headsTOSHIBA KK·Filed 1988·Granted Apr 30, 1991·11 cites·18 claims
- 3158US5708651AOptical disk having reduced track pitch and optical disk playback apparatus containing the sameTOSHIBA KK·Filed 1996·Granted Jan 13, 1998·16 cites·8 claims
- 3257US9346044B2Copper-based catalyst precursor, method for manufacturing same, and hydrogenation methodKURARAY CO·Filed 2013·Granted May 24, 2016·0 cites·15 claims
- 3357US2007121479A1Optical recording medium, information reproduction apparatus and information recording/reproductionTOSHIBA KK·Filed 2007·Application pending·0 cites
- 3456US4896240AMagnetic disk having an index area and a limited number of radially extending servo sectionsTOSHIBA KK·Filed 1988·Granted Jan 23, 1990·8 cites·3 claims
- 3550US6266650B1Mail-order shopping system, and DVD and adapter both for use in the mail-order shopping systemTOSHIBA KK·Filed 1997·Granted Jul 24, 2001·15 cites·37 claims
- 3648US4745503ALinear actuator for moving a recording/reading head in an access direction relative to a recording discTOSHIBA KK·Filed 1986·Granted May 17, 1988·15 cites·9 claims
- 3748US2005111343A1Information recording medium with index headerFiled 2004·Application pending·0 cites
- 3846US2006120259A1Optical disc, optical disc apparatus, and optical disc reproducing methodSUGAYA TOSHIHIRO·Filed 2005·Application pending·0 cites
- 3946US2007076544A1Optical disc, optical disc apparatus, and manufacturing method of the optical discSUGAYA TOSHIHIRO·Filed 2006·Application pending·0 cites
- 4045US5592464AOptical disk and optical disk apparatusTOSHIBA KK·Filed 1995·Granted Jan 7, 1997·8 cites·25 claims
- 4143US7688702B2Optical disc and optical disc deviceMEMORY TECH CORP·Filed 2005·Granted Mar 30, 2010·0 cites·1 claims
- 4243US2006120258A1Optical disc, optical disc apparatus, optical disc reproducing method, and digital content publicationMEMORY TECH CORP·Filed 2005·Application pending·0 cites
- 4335US5959963AOptical disk and optical disk apparatusTOSHIBA KK·Filed 1998·Granted Sep 28, 1999·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →