Inventor
TERASHIMA SHIGEO
JP53 patents
⚠️ This page may combine multiple inventors who share the name “TERASHIMA SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
47 patentsUS5434991AJul 18, 1995
Method and apparatus for recording and reproducing information in black on a rewritable recording medium
SHARP KK84 citations96
US5420838AMay 30, 1995
Disk recording and reproducing device
SHARP KK94 citations96
US5182741AJan 26, 1993
Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk
SHARP KK87 citations96
US6058100AMay 2, 2000
Optical recording medium having pit rows
SHARP KK21 citations93
US5673250ASep 30, 1997
Optical recording medium having pit rows on every other boundary and reproducing method thereof
SHARP KK26 citations93
US5432768AJul 11, 1995
Method and device for data management in optical recording medium
SHARP KK33 citations93
US5377167ADec 27, 1994
Recording/reproducing device
SHARP KK26 citations93
US5361247ANov 1, 1994
Information recording and reproducing device with reproduction and automatic gain control circuit
SHARP KK35 citations93
US5301174AApr 5, 1994
Optical disk recording and reproducing apparatus
SHARP KK24 citations93
US5278814AJan 11, 1994
Apparatus for recording and reproducing information on and from an optical disk
SHARP KK37 citations93
US5153861AOct 6, 1992
Recording/reproducing device
SHARP KK52 citations93
US5142521AAug 25, 1992
Recording/reproducing device
SHARP KK28 citations93
US5093820AMar 3, 1992
Optical disk recording/reproducing device
SHARP KK24 citations93
US5001732AMar 19, 1991
Track counter for optical disk
SHARP KK22 citations93
US4696566ASep 29, 1987
Three-dimensional driving arrangement
SHARP KK34 citations93
US5315571AMay 24, 1994
Information recording and reproducing device providing faster access time to a recording medium
SHARP KK44 citations92
US5170389ADec 8, 1992
Semiconductor laser driving circuit with control circuit power voltage monitor for preventing inadvertent recording
SHARP KK23 citations92
US5010539AApr 23, 1991
Optical disk device for storing both analog and discrete data and which utilizes both CLV and CAV techniques
SHARP KK24 citations92
US4920437AApr 24, 1990
Disc clamping device
SHARP KK23 citations92
US4862443AAug 29, 1989
Sync signal detection apparatus for accurately synchronizing reproduced data
SHARP KK34 citations92
US5581521ADec 3, 1996
Device for controlling the motor of a recording and reproducing apparatus
SHARP KK33 citations91
US5274617ADec 28, 1993
Method and device for data management in an optical recording medium
SHARP KK22 citations90
US4409469AOct 11, 1983
Optical bar code reader
SHARP KK52 citations89
US5200941AApr 6, 1993
Optical retrieval system for encoding pit angular data and optical recording element thereof
SHARP KK18 citations82
US4849953AJul 18, 1989
Tracking circuit for an optical information recording and reproducing apparatus
SHARP KK21 citations82
US5196978AMar 23, 1993
Cartridge case
SHARP KK20 citations81
US5907525AMay 25, 1999
Magneto-optical disk, optical pickup, and magneto-optical disk drive
SHARP KK11 citations74
US5740153AApr 14, 1998
Magneto-optical disk, optical pickup, and magneto-optical disk drive
SHARP KK7 citations74
US5546364AAug 13, 1996
Magneto-optical memory apparatus utilizing edges or recording mark to manage data
SHARP KK17 citations74
US5331623AJul 19, 1994
Optical retrieval system for encoding pit angular data and optical recording element therefor
SHARP KK10 citations74
US5311490AMay 10, 1994
Access controlling device for use in an optical disk drive
SHARP KK16 citations74
US5210733AMay 11, 1993
Information recording and reproducing device employing variable data recording clock rates
SHARP KK18 citations74
US5134607AJul 28, 1992
Optical memory system for generating a timing control signal for detecting a recorded region through a playback signal
SHARP KK10 citations74
US4999824AMar 12, 1991
Magneto-optical memory device
SHARP KK10 citations74
US4954903ASep 4, 1990
Digital signal reproduction apparatus for reading magneto-optical disks
SHARP KK6 citations74
US4924447AMay 8, 1990
Optical memory device for recording, reproducing or erasing information onto a recording medium, including a recorded region detecting circuit.
SHARP KK12 citations74
US4766584AAug 23, 1988
Three-dimensional driving arrangement
SHARP KK9 citations74
US5010540AApr 23, 1991
Apparatus for recording and reproducing information on and from an optical disk
SHARP KK8 citations73
US5293280AMar 8, 1994
Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus
SHARP KK11 citations72
US5553043ASep 3, 1996
Information regenerating apparatus
SHARP KK11 citations70
US5724319AMar 3, 1998
Magneto-optical recording apparatus having transient response correction for magnetic head coil currents
SHARP KK5 citations63
US5166838ANov 24, 1992
Digital signal reproduction apparatus for reading magneto-optical discs
SHARP KK2 citations63
US5048004ASep 10, 1991
Optical recording medium recording and reproducing device
SHARP KK6 citations63
US4910479AMar 20, 1990
Automatic gain control device for use in an optical memory device
SHARP KK3 citations63
US4906874AMar 6, 1990
Analog signal switching device for use in an optical memory
SHARP KK6 citations63
US4678276AJul 7, 1987
Objective lens drive/support mechanism in an optical disc player
SHARP KK5 citations63
US5056076AOct 8, 1991
Method for controlling the rotational velocity of an information recording disk
SHARP KK3 citations62
FUJITSU LTD
3 patentsUS5612840AMar 18, 1997
Magnetic spring arm assembly including structure for preventing damage to a conductive layer resulting from bending
FUJITSU LTD68 citations93
US6129855AOct 10, 2000
Method of manufacturing magnetic head slider, and guide plate used therefor
FUJITSU LTD27 citations85
US6511365B2Jan 28, 2003
Lapping machine
FUJITSU LTD10 citations74
Showing the top 50 of 53 patents by PatentIndex Score.