Inventor · disambiguated record
Ryuzo Tamayama
Also filed as: TAMAYAMA RYUZO
6 granted patents·3 pending applications·123 citations·filing 1990–2009
85Inventor score
Files withSONY CORP8
Top patents by PatentIndex Score
9 records- 0190US6246654B1Disk deviceSONY CORP·Filed 2000·Granted Jun 12, 2001·28 cites·3 claims
- 0288US6650609B2Disk deviceSONY CORP·Filed 2002·Granted Nov 18, 2003·24 cites·7 claims
- 0383US5179485AOptical encoder for disc apparatusSONY CORP·Filed 1990·Granted Jan 12, 1993·39 cites·4 claims
- 0471US6426932B2Disk deviceSONY CORP·Filed 1998·Granted Jul 30, 2002·19 cites·7 claims
- 0562US6603724B1Disk recording and/or reproducing device, disk loading mechanism, and disk eject mechanismSONY CORP·Filed 2000·Granted Aug 5, 2003·5 cites·16 claims
- 0659US7146018B2Multichannel acoustic signal reproducing apparatusSONY CORP·Filed 2001·Granted Dec 5, 2006·8 cites·15 claims
- 0757US2002062274A1Communication apparatus, communication system, communication method and recording mediumFiled 2001·Application pending·0 cites
- 0856US2007043641A1Communication apparatus, communication system, communication method and recording mediumSONY CORP·Filed 2006·Application pending·0 cites
- 0948US2010080404A1Drive unit manufacturing method and drive unitSONY CORP·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →