Inventor · disambiguated record
Takao Ihashi
Also filed as: IHASHI TAKAO
9 granted patents·174 citations·filing 1977–2005
88Inventor score
Technology areasG11B
Files withSONY CORP9
Top patents by PatentIndex Score
9 records- 0193US5265083APortable disc playerSONY CORP·Filed 1991·Granted Nov 23, 1993·96 cites·11 claims
- 0291US7072260B1Data recording medium, data reproducing method and reproducing device, and data processing systemSONY CORP·Filed 2000·Granted Jul 4, 2006·35 cites·71 claims
- 0388US7095694B2Information recording medium, storage medium, information reproduction apparatus and method, and information recording and reproduction apparatus and method as well as providing mediumSONY CORP·Filed 2005·Granted Aug 22, 2006·9 cites·2 claims
- 0468US6947362B2Information recording medium, storage medium, information reproduction apparatus and method, and information recording and reproduction apparatus and method as well as providing mediumSONY CORP·Filed 2003·Granted Sep 20, 2005·6 cites·6 claims
- 0568US6700845B1Multi-layer optical recording medium and method and apparatus for reproducing optical dataSONY CORP·Filed 2000·Granted Mar 2, 2004·7 cites·25 claims
- 0664US7480942B2Method for controlling access to disc data and method for indentifying discSONY CORP·Filed 2003·Granted Jan 20, 2009·5 cites·44 claims
- 0764US7216228B2Recording medium recording and/or reproduction apparatus, recording and/or reproduction methodSONY CORP·Filed 2002·Granted May 8, 2007·5 cites·31 claims
- 0862US4310912AServo system for recording and/or reproducing apparatus using a rotatable recording carrierSONY CORP·Filed 1977·Granted Jan 12, 1982·11 cites·5 claims
- 0941US7599891B2Method and system for administering storage mediumSONY CORP·Filed 2003·Granted Oct 6, 2009·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →