Inventor
TSURUSHIMA KATSUAKI
JP20 patents
Patents
20 patentsUS6575581B2Jun 10, 2003
Image projection method and image projector
SONY CORP60 citations96
US5537387AJul 16, 1996
Information storage disk with display data recorded in a lead-in region and an apparatus for recording and/reproducing the disc
SONY CORP66 citations96
US5521900AMay 28, 1996
Disk having a lead-in region containing display data and an apparatus for recording and/or reproducing the disc
SONY CORP68 citations96
US5299186AMar 29, 1994
Disc protecting cover
SONY CORP56 citations96
US5345433ASep 6, 1994
Optical disc recording apparatus and optical disc reproducing apparatus
SONY CORP57 citations95
US5859834AJan 12, 1999
Optical disc with magnetic member in a recessed portion thereof and method for producing said optical disc
SONY CORP32 citations93
US5317553AMay 31, 1994
Optical disc recording and/or reproducing apparatus having a buffer memory to accommodate track jumps
SONY CORP52 citations92
US5244705ASep 14, 1993
Disc-shaped recording medium
SONY CORP50 citations92
US4473274ASep 25, 1984
Objective lens assembly for optical disc player
SONY CORP39 citations92
US3968382AJul 6, 1976
Protective circuit for field effect transistor amplifier
SONY CORP21 citations82
US5666347ASep 9, 1997
Optical disk and disk chucking mechanism
SONY CORP9 citations74
US5467332ANov 14, 1995
Disc cleaning device
SONY CORP7 citations74
US5148418ASep 15, 1992
Disc recording apparatus
SONY CORP18 citations74
US4519058AMay 21, 1985
Optical disc player
SONY CORP9 citations74
US4482988ANov 13, 1984
Objective lens mount and drive for optical disc player
SONY CORP13 citations74
US4031482AJun 21, 1977
Bias circuit for FET
SONY CORP19 citations74
US3992677ANov 16, 1976
Muting circuit
SONY CORP11 citations74
US3943286AMar 9, 1976
Variable gain control circuit
SONY CORP14 citations74
US3949316AApr 6, 1976
Cascade-connected transistor amplifier
SONY CORP6 citations63
US3955154AMay 4, 1976
Oscillator circuit
SONY CORP5 citations62