Inventor · disambiguated record
Yoshiyuki Kageyama
Also filed as: KAGEYAMA YOSHIYUKI
41 granted patents·5 pending applications·1,424 citations·filing 1984–2024
98Inventor score
Top patents by PatentIndex Score
46 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
- 0392US5785828ASputtering target for producing optical recording mediumRICOH KK·Filed 1995·Granted Jul 28, 1998·54 cites·3 claims
- 0492US5740149APhase-change type optical recording and reproducing methodRICOH KK·Filed 1997·Granted Apr 14, 1998·67 cites·2 claims
- 0591US6503592B1Sputtering 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
- 0690US5736657ASputtering targetRICOH KK·Filed 1996·Granted Apr 7, 1998·86 cites·2 claims
- 0790US5646924ARecording and simultaneous verifying method of phase-changing type of information recording mediumRICOH KK·Filed 1994·Granted Jul 8, 1997·54 cites·12 claims
- 0889US6319368B1Sputtering 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
- 0989US6127016ASputtering 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
- 1089US6096398APhase-change optical recording mediumRICOH KK·Filed 1998·Granted Aug 1, 2000·58 cites·8 claims
- 1189US5761179APhase-change optical recording method using pulse width modulation techniqueRICOH KK·Filed 1996·Granted Jun 2, 1998·54 cites·60 claims
- 1288US6770346B2Optical recording medium and recording methodRICOH KK·Filed 2002·Granted Aug 3, 2004·40 cites·30 claims
- 1388US5298305APhase-change type information recording mediumRICOH KK·Filed 1992·Granted Mar 29, 1994·47 cites·7 claims
- 1487US6790592B2Phase-change optical information recording mediumRICOH KK·Filed 2001·Granted Sep 14, 2004·23 cites·17 claims
- 1585US6221557B1Optical information recording mediumRICOH KK·Filed 1997·Granted Apr 24, 2001·44 cites·6 claims
- 1685US5620767ALight reflecting and heat dissipating material and optical information recording medium using the sameRICOH KK·Filed 1993·Granted Apr 15, 1997·62 cites·7 claims
- 1785US4975338AThin film electroluminescence deviceRICOH KK·Filed 1989·Granted Dec 4, 1990·48 cites·21 claims
- 1884US6652806B2Method of producing a sputtering targetRICOH KK·Filed 2001·Granted Nov 25, 2003·14 cites·4 claims
- 1981US5095479AOptical information recording mediumRICOH KK·Filed 1991·Granted Mar 10, 1992·51 cites·10 claims
- 2079US11378259B2Light-emitting moduleNICHIA CORP·Filed 2019·Granted Jul 5, 2022·2 cites·20 claims
- 2179US4707570AManual information input deviceRICOH KK·Filed 1986·Granted Nov 17, 1987·61 cites·20 claims
- 2277US7288224B2Method of producing a sputtering targetRICOH KK·Filed 2003·Granted Oct 30, 2007·8 cites·1 claims
- 2374US6777057B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2003·Granted Aug 17, 2004·6 cites·8 claims
- 2474US5882493AHeat treated and sintered sputtering targetRICOH KK·Filed 1997·Granted Mar 16, 1999·25 cites·10 claims
- 2573US11619368B2Light-emitting moduleNICHIA CORP·Filed 2022·Granted Apr 4, 2023·0 cites·2 claims
- 2670US12046705B2Method of manufacturing light source device having a bonding layer with bumps and a bonding memberNICHIA CORP·Filed 2023·Granted Jul 23, 2024·0 cites·11 claims
- 2770US4914348AElectroluminescence multi-color display deviceRICOH KK·Filed 1988·Granted Apr 3, 1990·25 cites·3 claims
- 2869US5875160AMethod 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
- 2969US5142192AThin film electroluminescent elementRICOH KK·Filed 1991·Granted Aug 25, 1992·28 cites·8 claims
- 3068US4687723AElectrophotographic photoconductor having a photosensitive layer of amorphous silicon carbonitrideRICOH KK·Filed 1985·Granted Aug 18, 1987·16 cites·17 claims
- 3162US4720436AElectroluminescence devices and method of fabricating the sameRICOH KK·Filed 1986·Granted Jan 19, 1988·17 cites·4 claims
- 3261US11725796B2Light-emitting module, vehicle lamp, and heat dissipation memberNICHIA CORP·Filed 2022·Granted Aug 15, 2023·0 cites·20 claims
- 3361US2025098389A1Substrate and light emitting deviceNICHIA CORP·Filed 2024·Application pending·0 cites
- 3460US7366075B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2006·Granted Apr 29, 2008·0 cites·2 claims
- 3560US6884488B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2004·Granted Apr 26, 2005·2 cites·13 claims
- 3658US2025174606A1Light-emitting deviceNICHIA CORP·Filed 2024·Application pending·0 cites
- 3757US11677062B2Method of manufacturing light source device having a bonding layer with bumps and a bonding memberNICHIA CORP·Filed 2019·Granted Jun 13, 2023·0 cites·7 claims
- 3856US7102977B2Phase-change optical recording medium and recording method and apparatus for the sameRICOH KK·Filed 2005·Granted Sep 5, 2006·0 cites·3 claims
- 3955US7068591B2Information recording method and optical recording medium thereforRICOH KK·Filed 2005·Granted Jun 27, 2006·0 cites·3 claims
- 4055US6963527B2Information recording method and optical recording medium thereforRICOH KK·Filed 2003·Granted Nov 8, 2005·2 cites·9 claims
- 4154US2024405173A1Light emitting deviceNICHIA CORP·Filed 2024·Application pending·0 cites
- 4252US2024399956A1Method for estimating temperature of light emitting module, light emitting module, and automotive unitNICHIA CORP·Filed 2024·Application pending·0 cites
- 4347US4908292AMethod of making an electrophotographic inorganic photosensitive element using ultraviolet radiationRICOH KK·Filed 1988·Granted Mar 13, 1990·9 cites·13 claims
- 4446US5916730AOptical information recording medium and recording method by use of the recording mediumRICOH KK·Filed 1997·Granted Jun 29, 1999·7 cites·6 claims
- 4544US2023115310A1Method for estimating temperature of light emitting module, light emitting module, and automotive unitNICHIA CORP·Filed 2022·Application pending·0 cites
- 4638US4600672AElectrophotographic element having an amorphous silicon photoconductorRICOH KK·Filed 1984·Granted Jul 15, 1986·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →