Inventor · disambiguated record
Ippei Ogawa
Also filed as: OGAWA IPPEI
10 granted patents·2 pending applications·239 citations·filing 1999–2012
89Inventor score
Top patents by PatentIndex Score
12 records- 0195US6280810B1Phase-change information recording medium and optical recording method to make higher rotation rates feasibleRICOH KK·Filed 1999·Granted Aug 28, 2001·131 cites·13 claims
- 0288US6388978B1Optical recording method for a rewritable phase-change optical recording mediumRICOH KK·Filed 1999·Granted May 14, 2002·54 cites·13 claims
- 0384US6562432B2Optical recording medium and method of manufacturing the optical recording mediumRICOH KK·Filed 2001·Granted May 13, 2003·21 cites·46 claims
- 0479US6866910B2Information recording mediumRICOH KK·Filed 2003·Granted Mar 15, 2005·12 cites·20 claims
- 0575US6497935B1Phase-change optical information recording mediumRICOH KK·Filed 2000·Granted Dec 24, 2002·11 cites·13 claims
- 0668US7403457B2Method and apparatus for recording information with a multi-layer structureRICOH KK·Filed 2004·Granted Jul 22, 2008·6 cites·20 claims
- 0764US8270271B2Optical recording medium and information recording methodOGAWA IPPEI·Filed 2008·Granted Sep 18, 2012·1 cites·10 claims
- 0852US7190652B2Pulse shape modulation and information recording and reproducing technique using pulsed laser beamRICOH KK·Filed 2003·Granted Mar 13, 2007·2 cites·18 claims
- 0951US2007086294A1Optical recording medium and information recording methodOGAWA IPPEI·Filed 2006·Application pending·0 cites
- 1049US6697312B2Phase-change optical information recording methodRICOH KK·Filed 2002·Granted Feb 24, 2004·1 cites·13 claims
- 1140US2002182365A1Information recording mediumFiled 2002·Application pending·0 cites
- 1235US9814248B2Photodegradation resistant beverageOGAWA IPPEI·Filed 2012·Granted Nov 14, 2017·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →