Inventor · disambiguated record
Takao Rokutan
Also filed as: ROKUTAN TAKAO
29 granted patents·331 citations·filing 1985–1997
97Inventor score
Files withOLYMPUS OPTICAL CO29
Top patents by PatentIndex Score
29 records- 0183US4802018AElectronic marking apparatus for identifying a selected image from a plurality of electronically stored imagesOLYMPUS OPTICAL CO·Filed 1987·Granted Jan 31, 1989·47 cites·20 claims
- 0274US5394385AOptical information recording/reproducing apparatus for performing positioning of recording/reproducing spot by selection of pairs of photo detecting elementsOLYMPUS OPTICAL CO·Filed 1993·Granted Feb 28, 1995·22 cites·31 claims
- 0371US4924199AOptical card for data storage for use in a data recording and retrieving apparatusOLYMPUS OPTICAL CO·Filed 1987·Granted May 8, 1990·15 cites·12 claims
- 0469US4894817AMethod of writing data on optical card by projecting thereon intensity modulated light beamOLYMPUS OPTICAL CO·Filed 1988·Granted Jan 16, 1990·16 cites·14 claims
- 0568US5115421AOptical recording/reproducing apparatusOLYMPUS OPTICAL CO·Filed 1989·Granted May 19, 1992·15 cites·6 claims
- 0666US5568458AOptical information recording and reproducing apparatus in which reproducing light is used to perform servo control having no offset at recording modeOLYMPUS OPTICAL CO·Filed 1993·Granted Oct 22, 1996·17 cites·4 claims
- 0766US5438563AOptical information recording/reproducing device which simultaneously reproduces information from plural tracks and optical information recording/reproducing methodOLYMPUS OPTICAL CO·Filed 1993·Granted Aug 1, 1995·16 cites·20 claims
- 0864US5511051AOptical recording/reproducing apparatus capable of multi-track access for simultaneous multirack recording/reproductionOLYMPUS OPTICAL CO·Filed 1995·Granted Apr 23, 1996·18 cites·10 claims
- 0963US5402399AApparatus and method for reproducing information data from optical cardsOLYMPUS OPTICAL CO·Filed 1993·Granted Mar 28, 1995·14 cites·16 claims
- 1061US5583836AOptical recording/reproducing apparatus capable of multi-track access for simultaneous multitrack recording/reproductionOLYMPUS OPTICAL CO·Filed 1993·Granted Dec 10, 1996·13 cites·8 claims
- 1161US5091635AOptical record medium including a data region, an identification region and a control data region, and a method of recording signals on the optical record mediumOLYMPUS OPTICAL CO·Filed 1990·Granted Feb 25, 1992·13 cites·2 claims
- 1261US4918415AData reading and/or writing apparatus for use with an optical cardOLYMPUS OPTICAL CO·Filed 1987·Granted Apr 17, 1990·10 cites·30 claims
- 1356US5774433AOptical recording/reproducing apparatus using three count control signals for counting a number of tracks crossed by a light beamOLYMPUS OPTICAL CO·Filed 1996·Granted Jun 30, 1998·12 cites·6 claims
- 1456US4797872AMethod for reproducing data recorded on optical cardOLYMPUS OPTICAL CO·Filed 1987·Granted Jan 10, 1989·9 cites·7 claims
- 1555US5293365ATrack control circuit for optical card recording/reproducing apparatusOLYMPUS OPTICAL CO·Filed 1993·Granted Mar 8, 1994·10 cites·14 claims
- 1654US5392268AOptical recording/reproducing apparatus for reproducing information of multiple tracks capable of correcting uneven illumination of the multiple tracksOLYMPUS OPTICAL CO·Filed 1992·Granted Feb 21, 1995·9 cites·6 claims
- 1751US6034933AApparatus for recording and reproducing optical information on and from optical record mediumOLYMPUS OPTICAL CO·Filed 1997·Granted Mar 7, 2000·9 cites·21 claims
- 1851US5257249AOptical information recording reproducing apparatus for recording and reproducing information on a record medium and for generating track error signalsOLYMPUS OPTICAL CO·Filed 1992·Granted Oct 26, 1993·8 cites·15 claims
- 1948US5274615AMethod of accessing a card shaped recording mediumOLYMPUS OPTICAL CO·Filed 1992·Granted Dec 28, 1993·7 cites·9 claims
- 2048US5228018AOptical information recording/reproducing apparatus with tracking off-set correctionOLYMPUS OPTICAL CO·Filed 1991·Granted Jul 13, 1993·7 cites·7 claims
- 2145US5400308AOptical information recording/reproducing device capable of recording information on a moving medium and reproducing information by using reproducing light beamsOLYMPUS OPTICAL CO·Filed 1993·Granted Mar 21, 1995·6 cites·11 claims
- 2243US5157644AOptical card recording/reproducing apparatusOLYMPUS OPTICAL CO·Filed 1991·Granted Oct 20, 1992·5 cites·6 claims
- 2342US5398225AOptical information recording/regenerating apparatus and track scanning method for an optical information recording/regenerating apparatusOLYMPUS OPTICAL CO·Filed 1993·Granted Mar 14, 1995·5 cites·14 claims
- 2440US5184337AOptical recording/reproducing apparatus having means for periodically supervising drive current supplied to actuatorOLYMPUS OPTICAL CO·Filed 1991·Granted Feb 2, 1993·4 cites·22 claims
- 2540US4962301AMethod of reciprocally recording data on card-like record medium for unidirectional readingOLYMPUS OPTICAL CO·Filed 1988·Granted Oct 9, 1990·4 cites·6 claims
- 2638US5425010AOptical information recording/reproducing apparatus having photo detecting element disposed in a two-dimensional arrayOLYMPUS OPTICAL CO·Filed 1994·Granted Jun 13, 1995·3 cites·18 claims
- 2738US5298730AOptical card apparatus in which retrial of locating operation of optical card is retried on another track at the time of loading the sameOLYMPUS OPTICAL CO·Filed 1992·Granted Mar 29, 1994·7 cites·21 claims
- 2838US5179267AData reading and/or writing apparatus of type using optical cardOLYMPUS OPTICAL CO·Filed 1990·Granted Jan 12, 1993·7 cites·33 claims
- 2933US4612508AModified Miller data demodulatorOLYMPUS OPTICAL CO·Filed 1985·Granted Sep 16, 1986·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →