Inventor · disambiguated record
Masahiro Katsumura
Also filed as: KATSUMURA MASAHIRO
19 granted patents·3 pending applications·124 citations·filing 1991–2022
93Inventor score
Files withPIONEER CORP12MITSUBISHI ELECTRIC CORP3PIONEER ELECTRONIC CORP3KATSUMURA MASAHIRO2FUJITSU LTD1
Top patents by PatentIndex Score
22 records- 0191US6307826B1Information recording medium and method for recording information thereonPIONEER CORP·Filed 2000·Granted Oct 23, 2001·35 cites·6 claims
- 0275US5446722AInformation recording apparatus having magnetic shield meansPIONEER ELECTRONIC CORP·Filed 1993·Granted Aug 29, 1995·24 cites·5 claims
- 0370US5179547APhase change optical information recording medium including means for preventing movement of the recorded portionPIONEER ELECTRONIC CORP·Filed 1991·Granted Jan 12, 1993·21 cites·17 claims
- 0469US6695987B2Production method for optical discPIONEER CORP·Filed 2001·Granted Feb 24, 2004·7 cites·27 claims
- 0567US7554896B2Electron beam recording apparatusPIONEER CORP·Filed 2005·Granted Jun 30, 2009·1 cites·12 claims
- 0666US6882615B2Optical disc and apparatus for manufacturing a master disc thereforPIONEER CORP·Filed 2001·Granted Apr 19, 2005·5 cites·2 claims
- 0765US5195080AOptical recording medium initializing method and apparatusPIONEER ELECTRONIC CORP·Filed 1991·Granted Mar 16, 1993·15 cites·6 claims
- 0861US7276692B2Beam adjusting sample, beam adjusting method and beam adjusting devicePIONEER CORP·Filed 2003·Granted Oct 2, 2007·4 cites·12 claims
- 0955US7632628B2Stamper and method for production thereofPIONEER CORP·Filed 2004·Granted Dec 15, 2009·2 cites·3 claims
- 1055US6344275B2Electrode material for forming stamper and thin film for forming stamperPIONEER CORP·Filed 2001·Granted Feb 5, 2002·5 cites·18 claims
- 1153US7065034B2Optical disc and apparatus for manufacturing a master disc thereforPIONEER CORP·Filed 2005·Granted Jun 20, 2006·0 cites·1 claims
- 1252USD964277SBox for converterMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Sep 20, 2022·1 cites·1 claims
- 1349US12206336B2Power converterMITSUBISHI ELECTRIC CORP·Filed 2022·Granted Jan 21, 2025·0 cites·9 claims
- 1448US6849390B2Stamper-forming electrode material, stamper-forming thin film, and method of manufacturing optical diskPIONEER CORP·Filed 2002·Granted Feb 1, 2005·4 cites·3 claims
- 1546US8335146B2Master disk exposing apparatus and the adjusting method thereforKATSUMURA MASAHIRO·Filed 2007·Granted Dec 18, 2012·0 cites·8 claims
- 1644USD1036380SFilter box for converterMITSUBISHI ELECTRIC CORP·Filed 2022·Granted Jul 23, 2024·0 cites·1 claims
- 1744US8192194B2Mold and method for manufacturing the sameHASHIMOTO KAZUNOBU·Filed 2009·Granted Jun 5, 2012·0 cites·6 claims
- 1844US2008226946A1Magnetic disc, stamper for making magnetic disc, and method for making magnetic discFUJITSU LTD·Filed 2008·Application pending·0 cites
- 1940US6657934B2Information recording apparatus and method thereforPIONEER CORP·Filed 2001·Granted Dec 2, 2003·0 cites·6 claims
- 2037US2010009025A1Mold for pattern transferKATSUMURA MASAHIRO·Filed 2007·Application pending·0 cites
- 2134US7225192B2Hybrid recording medium and information recording apparatusPIONEER CORP·Filed 2001·Granted May 29, 2007·0 cites·2 claims
- 2233US2002153625A1Stamper-forming electrode material, stamper-forming thin film, and method of manufacturing optical diskPIONEER CORP·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →