Inventor · disambiguated record
Makoto Harigaya
Also filed as: HARIGAYA MAKOTO
46 granted patents·4 pending applications·1,720 citations·filing 1981–2006
99Inventor score
Files withRICOH KK46
Top patents by PatentIndex Score
50 records- 0199US6280684B1Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording mediumRICOH KK·Filed 2000·Granted Aug 28, 2001·320 cites·4 claims
- 0296US6548137B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2000·Granted Apr 15, 2003·60 cites·10 claims
- 0395US6479121B1Optical recording medium and method of fabricating sameRICOH KK·Filed 2000·Granted Nov 12, 2002·65 cites·14 claims
- 0494US5024927AInformation recording mediumRICOH KK·Filed 1989·Granted Jun 18, 1991·53 cites·3 claims
- 0593US5080947AInformation recording mediumRICOH KK·Filed 1990·Granted Jan 14, 1992·61 cites·17 claims
- 0692US5785828ASputtering target for producing optical recording mediumRICOH KK·Filed 1995·Granted Jul 28, 1998·54 cites·3 claims
- 0792US5740149APhase-change type optical recording and reproducing methodRICOH KK·Filed 1997·Granted Apr 14, 1998·67 cites·2 claims
- 0891US6503592B1Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording mediumRICOH KK·Filed 2001·Granted Jan 7, 2003·24 cites·17 claims
- 0990US7438965B2Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatusRICOH KK·Filed 2005·Granted Oct 21, 2008·10 cites·23 claims
- 1090US5736657ASputtering targetRICOH KK·Filed 1996·Granted Apr 7, 1998·86 cites·2 claims
- 1190US5646924ARecording and simultaneous verifying method of phase-changing type of information recording mediumRICOH KK·Filed 1994·Granted Jul 8, 1997·54 cites·12 claims
- 1289US6319368B1Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of forming recording layer for the optical recording mediumRICOH KK·Filed 1997·Granted Nov 20, 2001·46 cites·12 claims
- 1389US6127016ASputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording mediumRICOH KK·Filed 1997·Granted Oct 3, 2000·40 cites·16 claims
- 1489US6096398APhase-change optical recording mediumRICOH KK·Filed 1998·Granted Aug 1, 2000·58 cites·8 claims
- 1589US5948496AOptical recording mediumRICOH KK·Filed 1997·Granted Sep 7, 1999·59 cites·12 claims
- 1689US5761179APhase-change optical recording method using pulse width modulation techniqueRICOH KK·Filed 1996·Granted Jun 2, 1998·54 cites·60 claims
- 1788US6770346B2Optical recording medium and recording methodRICOH KK·Filed 2002·Granted Aug 3, 2004·40 cites·30 claims
- 1888US5298305APhase-change type information recording mediumRICOH KK·Filed 1992·Granted Mar 29, 1994·47 cites·7 claims
- 1987US6790592B2Phase-change optical information recording mediumRICOH KK·Filed 2001·Granted Sep 14, 2004·23 cites·17 claims
- 2086US5156693AInformation recording mediumRICOH KK·Filed 1991·Granted Oct 20, 1992·45 cites·3 claims
- 2185US6221557B1Optical information recording mediumRICOH KK·Filed 1997·Granted Apr 24, 2001·44 cites·6 claims
- 2285US5620767ALight reflecting and heat dissipating material and optical information recording medium using the sameRICOH KK·Filed 1993·Granted Apr 15, 1997·62 cites·7 claims
- 2384US6652806B2Method of producing a sputtering targetRICOH KK·Filed 2001·Granted Nov 25, 2003·14 cites·4 claims
- 2484US5011723AOptical information recording mediumRICOH KK·Filed 1989·Granted Apr 30, 1991·52 cites·9 claims
- 2583US6846611B2Phase-change optical recording mediumRICOH KK·Filed 2002·Granted Jan 25, 2005·17 cites·15 claims
- 2683US5100700AInformation recording mediumRICOH KK·Filed 1990·Granted Mar 31, 1992·54 cites·10 claims
- 2781US5095479AOptical information recording mediumRICOH KK·Filed 1991·Granted Mar 10, 1992·51 cites·10 claims
- 2881US4840922AMethod of manufacturing masked semiconductor laserRICOH KK·Filed 1987·Granted Jun 20, 1989·30 cites·36 claims
- 2980US7260053B2Optical recording medium, process for manufacturing the same, sputtering target for manufacturing the same, and optical recording process using the sameRICOH KK·Filed 2003·Granted Aug 21, 2007·14 cites·39 claims
- 3079US7507523B2Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical informationRICOH KK·Filed 2001·Granted Mar 24, 2009·14 cites·33 claims
- 3179US7242657B2Phase change type optical recording medium and recording method thereforRICOH KK·Filed 2003·Granted Jul 10, 2007·13 cites·13 claims
- 3277US7288224B2Method of producing a sputtering targetRICOH KK·Filed 2003·Granted Oct 30, 2007·8 cites·1 claims
- 3377US6884487B2Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting methodRICOH KK·Filed 2003·Granted Apr 26, 2005·8 cites·49 claims
- 3474US7384678B2Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatusRICOH KK·Filed 2006·Granted Jun 10, 2008·2 cites·54 claims
- 3574US6777057B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2003·Granted Aug 17, 2004·6 cites·8 claims
- 3674US5882493AHeat treated and sintered sputtering targetRICOH KK·Filed 1997·Granted Mar 16, 1999·25 cites·10 claims
- 3773US7773478B2Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the sameRICOH KK·Filed 2006·Granted Aug 10, 2010·2 cites·16 claims
- 3869US5875160AMethod and device for initializing optical recording medium of phase change type, and optical recording mediumRICOH KK·Filed 1997·Granted Feb 23, 1999·20 cites·19 claims
- 3960US7366075B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2006·Granted Apr 29, 2008·0 cites·2 claims
- 4060US6884488B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2004·Granted Apr 26, 2005·2 cites·13 claims
- 4159US7364781B2Optical recording medium, recording material, method of producing optical recording medium and optical recording, reading and rewriting methodRICOH KK·Filed 2006·Granted Apr 29, 2008·0 cites·7 claims
- 4256US7102977B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2005·Granted Sep 5, 2006·0 cites·3 claims
- 4355US7068591B2Information recording method and optical recording medium thereforRICOH KK·Filed 2005·Granted Jun 27, 2006·0 cites·3 claims
- 4455US6963527B2Information recording method and optical recording medium thereforRICOH KK·Filed 2003·Granted Nov 8, 2005·2 cites·9 claims
- 4548US4379820AElectrophotographic photoconductor of halogen-doped Se-Te alloy layersRICOH KK·Filed 1981·Granted Apr 12, 1983·7 cites·4 claims
- 4648US2005058055A1Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting methodFiled 2004·Application pending·0 cites
- 4746US5916730AOptical information recording medium and recording method by use of the recording mediumRICOH KK·Filed 1997·Granted Jun 29, 1999·7 cites·6 claims
- 4844US2005195729A1Optical recording medium, method and apparatus for optical recording and reproducing using the sameFiled 2005·Application pending·0 cites
- 4943US2005105438A1Optical information recording method and optical information recording apparatusFiled 2004·Application pending·0 cites
- 5043US2001041240A1Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting methodFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →