Inventor · disambiguated record
Shigeru Ohuchida
Also filed as: OHUCHIDA SHIGERU
22 granted patents·685 citations·filing 1988–2007
96Inventor score
Files withRICOH KK22
Top patents by PatentIndex Score
22 records- 0196US5107359AOptical wavelength-divison multi/demultiplexerRICOH KK·Filed 1989·Granted Apr 21, 1992·127 cites·6 claims
- 0294US5231620AMagneto-optical recording/reproducing apparatus with light beam splitting meansRICOH KK·Filed 1991·Granted Jul 27, 1993·75 cites·4 claims
- 0393US5015835AOptical information reading and writing device with diffraction meansRICOH KK·Filed 1989·Granted May 14, 1991·56 cites·11 claims
- 0491US5115423AOptomagnetic recording/reproducing apparatusRICOH KK·Filed 1989·Granted May 19, 1992·39 cites·9 claims
- 0591US5060212AIntegrated optical pick-up deviceRICOH KK·Filed 1988·Granted Oct 22, 1991·36 cites·10 claims
- 0689US5101389AOptical information recording/reproducing apparatusRICOH KK·Filed 1990·Granted Mar 31, 1992·52 cites·18 claims
- 0785US5107477AIntegrated optical pick-up deviceRICOH KK·Filed 1991·Granted Apr 21, 1992·29 cites·9 claims
- 0884US6876621B2Optical apparatus for recording/reproducing and reading/reproducing data on an optical recording medium, and method for using sameRICOH KK·Filed 2001·Granted Apr 5, 2005·16 cites·2 claims
- 0984US5684779AOptical head with forward and reflected light beams propagating through a dual diffraction grating device along a common pathRICOH KK·Filed 1996·Granted Nov 4, 1997·42 cites·16 claims
- 1084US4935911AOptical head device for recording and reproducing informationRICOH KK·Filed 1988·Granted Jun 19, 1990·30 cites·9 claims
- 1183US5428588AOptical headRICOH KK·Filed 1993·Granted Jun 27, 1995·33 cites·8 claims
- 1281US5243583AOptical pickup device with dual grating elementRICOH KK·Filed 1990·Granted Sep 7, 1993·34 cites·8 claims
- 1380US5956302AOptical pick-up device and method using a high-density double diffraction gratingRICOH KK·Filed 1997·Granted Sep 21, 1999·36 cites·14 claims
- 1479US5278817AOptical pick-up for use with an opto-magnetic signalRICOH KK·Filed 1992·Granted Jan 11, 1994·25 cites·18 claims
- 1578US7457222B2Optical element, optical pickup unit, and optical disk drive unitRICOH KK·Filed 2007·Granted Nov 25, 2008·2 cites·6 claims
- 1678US6937554B2Optical pickup apparatus having an improved holographic unit, and optical disk drive including the sameRICOH KK·Filed 2001·Granted Aug 30, 2005·11 cites·10 claims
- 1774US5097462AIntegrated optical pick-up deviceRICOH KK·Filed 1991·Granted Mar 17, 1992·17 cites·5 claims
- 1870US5325348AWavelength converting element and system for recording and reproducing optical informationRICOH KK·Filed 1992·Granted Jun 28, 1994·19 cites·18 claims
- 1963US6810001B2Optical pickup apparatus and optical pickup method adapted for selectively using laser light of different wavelengthsRICOH KK·Filed 2001·Granted Oct 26, 2004·4 cites·5 claims
- 2052US7307938B2Optical pickup apparatus having an improved holographic unit, and optical disk drive including the sameRICOH KK·Filed 2004·Granted Dec 11, 2007·1 cites·9 claims
- 2152US7177258B2Optical pickup apparatus, optical data recording/reproducing apparatus, and optical data recording/reproducing methodRICOH KK·Filed 2004·Granted Feb 13, 2007·1 cites·18 claims
- 2248US7426169B2Optical pickup apparatus and optical pickup methodRICOH KK·Filed 2004·Granted Sep 16, 2008·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →