Inventor

ROKUTAN TAKAO

JP29 patents

Patents

29 patents

US5394385AFeb 28, 1995

Optical information recording/reproducing apparatus for performing positioning of recording/reproducing spot by selection of pairs of photo detecting elements

OLYMPUS OPTICAL CO22 citations92

US4802018AJan 31, 1989

Electronic marking apparatus for identifying a selected image from a plurality of electronically stored images

OLYMPUS OPTICAL CO47 citations91

US6034933AMar 7, 2000

Apparatus for recording and reproducing optical information on and from optical record medium

OLYMPUS OPTICAL CO9 citations74

US5774433AJun 30, 1998

Optical recording/reproducing apparatus using three count control signals for counting a number of tracks crossed by a light beam

OLYMPUS OPTICAL CO12 citations74

US5392268AFeb 21, 1995

Optical recording/reproducing apparatus for reproducing information of multiple tracks capable of correcting uneven illumination of the multiple tracks

OLYMPUS OPTICAL CO9 citations74

US5298730AMar 29, 1994

Optical card apparatus in which retrial of locating operation of optical card is retried on another track at the time of loading the same

OLYMPUS OPTICAL CO7 citations74

US5293365AMar 8, 1994

Track control circuit for optical card recording/reproducing apparatus

OLYMPUS OPTICAL CO10 citations74

US5274615ADec 28, 1993

Method of accessing a card shaped recording medium

OLYMPUS OPTICAL CO7 citations74

US5257249AOct 26, 1993

Optical information recording reproducing apparatus for recording and reproducing information on a record medium and for generating track error signals

OLYMPUS OPTICAL CO8 citations74

US5228018AJul 13, 1993

Optical information recording/reproducing apparatus with tracking off-set correction

OLYMPUS OPTICAL CO7 citations74

US5179267AJan 12, 1993

Data reading and/or writing apparatus of type using optical card

OLYMPUS OPTICAL CO7 citations74

US5115421AMay 19, 1992

Optical recording/reproducing apparatus

OLYMPUS OPTICAL CO15 citations74

US5091635AFeb 25, 1992

Optical record medium including a data region, an identification region and a control data region, and a method of recording signals on the optical record medium

OLYMPUS OPTICAL CO13 citations74

US4924199AMay 8, 1990

Optical card for data storage for use in a data recording and retrieving apparatus

OLYMPUS OPTICAL CO15 citations74

US4918415AApr 17, 1990

Data reading and/or writing apparatus for use with an optical card

OLYMPUS OPTICAL CO10 citations74

US4797872AJan 10, 1989

Method for reproducing data recorded on optical card

OLYMPUS OPTICAL CO9 citations74

US5583836ADec 10, 1996

Optical recording/reproducing apparatus capable of multi-track access for simultaneous multitrack recording/reproduction

OLYMPUS OPTICAL CO13 citations73

US5568458AOct 22, 1996

Optical information recording and reproducing apparatus in which reproducing light is used to perform servo control having no offset at recording mode

OLYMPUS OPTICAL CO17 citations73

US5511051AApr 23, 1996

Optical recording/reproducing apparatus capable of multi-track access for simultaneous multirack recording/reproduction

OLYMPUS OPTICAL CO18 citations73

US5438563AAug 1, 1995

Optical information recording/reproducing device which simultaneously reproduces information from plural tracks and optical information recording/reproducing method

OLYMPUS OPTICAL CO16 citations73

US5402399AMar 28, 1995

Apparatus and method for reproducing information data from optical cards

OLYMPUS OPTICAL CO14 citations73

US4894817AJan 16, 1990

Method of writing data on optical card by projecting thereon intensity modulated light beam

OLYMPUS OPTICAL CO16 citations73

US5425010AJun 13, 1995

Optical information recording/reproducing apparatus having photo detecting element disposed in a two-dimensional array

OLYMPUS OPTICAL CO3 citations63

US5184337AFeb 2, 1993

Optical recording/reproducing apparatus having means for periodically supervising drive current supplied to actuator

OLYMPUS OPTICAL CO4 citations63

US5157644AOct 20, 1992

Optical card recording/reproducing apparatus

OLYMPUS OPTICAL CO5 citations63

US4962301AOct 9, 1990

Method of reciprocally recording data on card-like record medium for unidirectional reading

OLYMPUS OPTICAL CO4 citations63

US4612508ASep 16, 1986

Modified Miller data demodulator

OLYMPUS OPTICAL CO3 citations63

US5400308AMar 21, 1995

Optical information recording/reproducing device capable of recording information on a moving medium and reproducing information by using reproducing light beams

OLYMPUS OPTICAL CO6 citations62

US5398225AMar 14, 1995

Optical information recording/regenerating apparatus and track scanning method for an optical information recording/regenerating apparatus

OLYMPUS OPTICAL CO5 citations62