Inventor · disambiguated record
Ken Ohshima
Also filed as: OHSHIMA KEN · OHSHIMA KEN-ICHI
18 granted patents·417 citations·filing 1980–2005
95Inventor score
Top patents by PatentIndex Score
18 records- 0196US4710908AServo apparatus for compensating for warp and deflection deviations on optical discsOLYMPUS OPTICAL CO·Filed 1984·Granted Dec 1, 1987·61 cites·3 claims
- 0292US7551722B2X-ray target and apparatuses using the sameJAPAN SCIENCE & TECH AGENCY·Filed 2005·Granted Jun 23, 2009·50 cites·17 claims
- 0392US4611317AOptical disk apparatusOLYMPUS OPTICAL CO·Filed 1983·Granted Sep 9, 1986·44 cites·6 claims
- 0488US4683560AMicroprocessor controlled focussing servo acquisitionOLYMPUS OPTICAL CO·Filed 1983·Granted Jul 28, 1987·34 cites·10 claims
- 0588US4508450ASystem for checking defects on a flat surface of an objectOLYMPUS OPTICAL CO·Filed 1982·Granted Apr 2, 1985·55 cites·5 claims
- 0688US4505585ASystem for detecting defects on an optical surfaceOLYMPUS OPTICAL CO·Filed 1982·Granted Mar 19, 1985·55 cites·9 claims
- 0781US4372504AMagnetic record tape protective device for a tape cassetteOLYMPUS OPTICAL CO·Filed 1980·Granted Feb 8, 1983·24 cites·18 claims
- 0865US4785439AOptical memory accessing and tracking apparatus with pickup and lens servoing during trackingOLYMPUS OPTICAL CO·Filed 1986·Granted Nov 15, 1988·14 cites·15 claims
- 0960US4718051AOptical beam tracking system for use in optical information recording and/or reproducing apparatusOLYMPUS OPTICAL CO·Filed 1984·Granted Jan 5, 1988·12 cites·12 claims
- 1058US4499514ADisc drive apparatusOLYMPUS OPTICAL CO·Filed 1982·Granted Feb 12, 1985·9 cites·13 claims
- 1157US4644514AHead drive control apparatusOLYMPUS OPTICAL CO·Filed 1984·Granted Feb 17, 1987·9 cites·6 claims
- 1257US4611316AActuator operating center detecting circuit and optical disk apparatus with the detecting circuitOLYMPUS OPTICAL CO·Filed 1983·Granted Sep 9, 1986·9 cites·6 claims
- 1355US4674071AData recording area signal generating method and apparatusOLYMPUS OPTICAL CO·Filed 1984·Granted Jun 16, 1987·11 cites·6 claims
- 1452US4495407ASystem for focusing an optical head onto a flat surfaceOLYMPUS OPTICAL CO·Filed 1982·Granted Jan 22, 1985·12 cites·9 claims
- 1548US4352473ATape cassetteOLYMPUS OPTICAL CO·Filed 1980·Granted Oct 5, 1982·6 cites·8 claims
- 1642US4355750ADouble-capstan tape driving deviceOLYMPUS OPTICAL CO·Filed 1980·Granted Oct 26, 1982·4 cites·8 claims
- 1729US5355355AElectronic file apparatus capable of storing code data and image data into optical memoryTOSHIBA KK·Filed 1991·Granted Oct 11, 1994·5 cites·18 claims
- 1827US6116887AFoam molding equipmentAISIN TAKAOKA LTD·Filed 1998·Granted Sep 12, 2000·3 cites·15 claims
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