Inventor
FUJISAWA HIROTOSHI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “FUJISAWA HIROTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
42 patentsUS7600189B2Oct 6, 2009
Display device, display method, and program
SONY CORP144 citations98
US5363362ANov 8, 1994
Apparatus for reproducing recorded data comprising interleaved clusters and cluster linking sectors
SONY CORP125 citations98
US5243588ASep 7, 1993
Method and apparatus for reading digital data bursts comprising data clusters and cluster linking sectors
SONY CORP117 citations98
US7190336B2Mar 13, 2007
Information processing apparatus and method, recording medium and program
SONY CORP46 citations93
US5963537AOct 5, 1999
Method of interchangeably using two disc cartridges with two different types of shutters
SONY CORP27 citations93
US5859834AJan 12, 1999
Optical disc with magnetic member in a recessed portion thereof and method for producing said optical disc
SONY CORP32 citations93
US5822297AOct 13, 1998
Disc cartridge with locking shutter having an inserting portion
SONY CORP20 citations93
US5745451AApr 28, 1998
Disc recording and/or reproducing apparatus
SONY CORP45 citations93
US5627687AMay 6, 1997
Objective lens driving apparatus and method for manufacture thereof
SONY CORP42 citations93
US5581533ADec 3, 1996
Objective lens actuating device, optical pickup employing the objective lens actuating device and optical disk recording and/or reproducing apparatus employing such optical pickup
SONY CORP25 citations93
US5530691AJun 25, 1996
Disc cartridge
SONY CORP39 citations93
US5497366AMar 5, 1996
Optical-pick up device using multi-lens holder
SONY CORP21 citations93
US5309421AMay 3, 1994
Recording and/or reproducing apparatus for optical disk
SONY CORP41 citations93
US5272693ADec 21, 1993
Disc cartridge having a shutter
SONY CORP45 citations93
US7965266B2Jun 21, 2011
Image display unit and method of detecting object
SONY CORP12 citations84
US6388971B2May 14, 2002
Disc recording and/or reproducing apparatus and disc reproducing apparatus
SONY CORP7 citations74
US6137770AOct 24, 2000
Disk cartridge which has a recess whose height indicates the type of disk contained by the cartridge
SONY CORP7 citations74
US5815487ASep 29, 1998
Disc cartridge
SONY CORP12 citations74
USD392951SMar 31, 1998
Optical disc cartridge
SONY CORP13 citations74
US5577914ANov 26, 1996
Device for representing braille on information signal recording medium and disc cartridge
SONY CORP13 citations74
US5523891AJun 4, 1996
Objective lens driving device and method for producing resilient supporting member provided in objective lens driving device
SONY CORP14 citations74
USD369151SApr 23, 1996
Optical disc cartridge
SONY CORP9 citations74
USD369152SApr 23, 1996
Optical disc cartridge
SONY CORP9 citations74
USD369153SApr 23, 1996
Optical disc cartridge
SONY CORP12 citations74
US5506023AApr 9, 1996
Magneto-optical disc
SONY CORP8 citations74
US5367422ANov 22, 1994
Disc cartridge having mistaken recording inhibiting mechanism
SONY CORP14 citations74
USD340032SOct 5, 1993
Optical disk cartridge
SONY CORP10 citations74
US5072431ADec 10, 1991
Magneto-optical disk recording apparatus
SONY CORP15 citations74
US5034933AJul 23, 1991
Magneto-optical recording apparatus
SONY CORP13 citations74
USD465787SNov 19, 2002
Shutter for an optical disc cartridge
SONY CORP2 citations63
US6014294AJan 11, 2000
Disc cartridge with clearance groove
SONY CORP6 citations63
USD400868SNov 10, 1998
Shutter for an optical disc cartridge
SONY CORP4 citations63
USD392950SMar 31, 1998
Optical disc cartridge
SONY CORP3 citations63
USD392953SMar 31, 1998
Shutter for an optical disc cartridge
SONY CORP3 citations63
USD392949SMar 31, 1998
Optical disc cartridge
SONY CORP3 citations63
US5467239ANov 14, 1995
Disc cartridge withribbed shutter
SONY CORP6 citations63
USRE34710EAug 30, 1994
Magneto-optical recording apparatus
SONY CORP4 citations63
USD343613SJan 25, 1994
Shutter for an optical disc cartridge
SONY CORP2 citations63
US7705886B2Apr 27, 2010
Information processing apparatus and method, recording medium, program, and display device
SONY CORP4 citations61
USD403672SJan 5, 1999
Optical disc cartridge
SONY CORP0 citations52
USD403671SJan 5, 1999
Optical disc cartridge
SONY CORP1 citations52
US5357498AOct 18, 1994
Disc drive apparatus that positions an objective lens within a disc cartridge at the time when the disc is rotated
SONY CORP0 citations52