Inventor · disambiguated record
Sumitaka Maruyama
Also filed as: MARUYAMA SUMITAKA
23 granted patents·36 pending applications·104 citations·filing 2001–2013
94Inventor score
Top patents by PatentIndex Score
59 records- 0191US7345984B2Information storage medium, recording method, reproducing method, and reproducing apparatusTOSHIBA KK·Filed 2006·Granted Mar 18, 2008·9 cites·4 claims
- 0287US7142484B2Optical information processing system using optical aberrations and information medium having recording layer protected by transparent layer having thickness irregularityTOSHIBA KK·Filed 2001·Granted Nov 28, 2006·24 cites·2 claims
- 0386US7924691B2Information storage medium, recording method, and recording apparatusTOSHIBA KK·Filed 2007·Granted Apr 12, 2011·4 cites·8 claims
- 0484US7283447B2Optical disc and optical disc apparatusTOSHIBA KK·Filed 2006·Granted Oct 16, 2007·5 cites·4 claims
- 0583US7352671B2Storage medium, reproducing method, and recording methodTOSHIBA KK·Filed 2006·Granted Apr 1, 2008·3 cites·3 claims
- 0683US6937544B2Optical disk unit for recording or reproducing informationTOSHIBA KK·Filed 2002·Granted Aug 30, 2005·17 cites·3 claims
- 0782US7411888B2Information storage medium, recording method, reproducing method, and reproducing apparatusTOSHIBA KK·Filed 2006·Granted Aug 12, 2008·3 cites·1 claims
- 0882US7224645B2Optical information processing system using optical aberrations and information medium having recording layer protected by transparent layer having thickness irregularityTOSHIBA KK·Filed 2004·Granted May 29, 2007·16 cites·7 claims
- 0979US7668064B2Optical pickup unit and information recording/reproduction apparatusTOSHIBA KK·Filed 2006·Granted Feb 23, 2010·4 cites·10 claims
- 1078US7426167B2Information storage medium, recording method, reproducing method, and reproducing apparatusTOSHIBA KK·Filed 2006·Granted Sep 16, 2008·2 cites·2 claims
- 1178US7352683B2Information storage medium, recording method, reproducing method, and reproducing apparatusTOSHIBA KK·Filed 2006·Granted Apr 1, 2008·2 cites·1 claims
- 1277US7224653B2Optical disk unit capable of restraining changes in light quantityTOSHIBA KK·Filed 2005·Granted May 29, 2007·3 cites·8 claims
- 1366US2008151718A1Information storage medium including a track pitch in a system lead-in area that is longer than a track pitch in a data lead-in areaANDO HIDEO·Filed 2008·Application pending·0 cites
- 1464US2007097533A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 1564US2007091731A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 1664US2007097828A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 1764US2007097847A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 1864US2007086101A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 1964US2007097815A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 2064US2007086319A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 2164US2007097830A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 2264US2007091496A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 2364US2007086320A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 2464US2007097829A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 2562US6925046B2Optical head device and optical disk unit capable of stable signal reproductionTOSHIBA KK·Filed 2002·Granted Aug 2, 2005·5 cites·4 claims
- 2661US7408858B2Information storage medium including a system lead-in area, a connection area, a data lead-in area and a data areaTOSHIBA KK·Filed 2006·Granted Aug 5, 2008·0 cites·1 claims
- 2761US7366070B2Storage medium including a burst cutting area (BCA)TOSHIBA KK·Filed 2006·Granted Apr 29, 2008·0 cites·3 claims
- 2860US8599675B2Information storage medium, recording method, and recording apparatusTOSHIBA KK·Filed 2013·Granted Dec 3, 2013·0 cites·5 claims
- 2960US7352682B2Storage medium including a burst cutting area (BCA)TOSHIBA KK·Filed 2006·Granted Apr 1, 2008·0 cites·1 claims
- 3060US7342866B2Optical disc and its information recording method and apparatusTOSHIBA KK·Filed 2004·Granted Mar 11, 2008·3 cites·4 claims
- 3160US2007247998A1Information storage medium, recording method, reproducing method, and reproducing apparatusMARUYAMA SUMITAKA·Filed 2007·Application pending·0 cites
- 3260US2008144479A1Optical disc and its information recording method and apparatusTOSHIBA KK·Filed 2008·Application pending·0 cites
- 3359US2007086100A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusANDO HIDEO·Filed 2006·Application pending·0 cites
- 3459US2007097841A1Information storage medium, recording method, reproducing method, and reproducing apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 3558US2007086282A1Information storage medium, information recording method and apparatus, and information reproducing method and apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 3658US2007133370A1Information storage medium, recording method, and recording apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 3757US6781928B2Optical head and optical disk apparatusTOSHIBA KK·Filed 2001·Granted Aug 24, 2004·3 cites·15 claims
- 3857US2007097808A1Information storage medium, recording method, and recording apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 3957US2007008848A1Information storage medium, recording method, reproducing method, and reproducing apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 4056US2007008847A1Information storage medium, information recording method and apparatus, and information reproducing method and apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 4154US8582414B2Information storage medium, recording method, and recording apparatusWATABE KAZUO·Filed 2011·Granted Nov 12, 2013·0 cites·5 claims
- 4254US8582399B2Information storage medium, recording method, and recording apparatusWATABE KAZUO·Filed 2011·Granted Nov 12, 2013·0 cites·5 claims
- 4354US8547816B2Information storage medium, recording method, and recording apparatusWATABE KAZUO·Filed 2011·Granted Oct 1, 2013·0 cites·5 claims
- 4449US7274630B2Layer discriminating focus control apparatus, optical disk apparatus, and methods thereforeTOSHIBA KK·Filed 2003·Granted Sep 25, 2007·1 cites·8 claims
- 4549US2004246863A1Information recording medium, information reproducing apparatus, and information recording and reproducing apparatusFiled 2004·Application pending·0 cites
- 4646US2007002704A1Optical head and optical disc apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 4746US2006193221A1Optical head unit and optical disc apparatusMARUYAMA SUMITAKA·Filed 2006·Application pending·0 cites
- 4846US2006262708A1Optical head unit and optical disc apparatusWATABE KAZUO·Filed 2006·Application pending·0 cites
- 4945US2006193236A1Optical head unit and optical disc apparatusWATABE KAZUO·Filed 2006·Application pending·0 cites
- 5045US2006187776A1Information recording and reproducing apparatus and method for controlling positions of optical pickup device and objective lens used for the apparatusOKANO HIDEAKI·Filed 2006·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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