Ryuzo Tamayama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multichannel acoustic signal reproducing apparatus
- Patent number 7,146,018
- Issue date Dec 5, 2006
- Sony Corporation
- Ryuzo Tamayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Disk device
- Patent number 6,650,609
- Issue date Nov 18, 2003
- Sony Corporation
- Kiyoshi Omori
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk recording and/or reproducing device, disk loading mechanism, a...
- Patent number 6,603,724
- Issue date Aug 5, 2003
- Sony Corporation
- Koichi Numata
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device
- Patent number 6,426,932
- Issue date Jul 30, 2002
- Sony Corporation
- Kiyoshi Omori
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device
- Patent number 6,246,654
- Issue date Jun 12, 2001
- Sony Corporation
- Kiyoshi Omori
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical encoder for disc apparatus
- Patent number 5,179,485
- Issue date Jan 12, 1993
- Sony Corporation
- Ryuzo Tamayama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
DRIVE UNIT MANUFACTURING METHOD AND DRIVE UNIT
- Publication number 20100080404
- Publication date Apr 1, 2010
- SONY CORPORATION
- Ryuzo Tamayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication apparatus, communication system, communication method...
- Publication number 20070043641
- Publication date Feb 22, 2007
- Sony Corporation
- Ryuzo Tamayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Disk device
- Publication number 20020093899
- Publication date Jul 18, 2002
- Sony Corporation
- Kiyoshi Omori
- G11 - INFORMATION STORAGE
Information Patent Application
Communication apparatus, communication system, communication method...
- Publication number 20020062274
- Publication date May 23, 2002
- Ryuzo Tamayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Multichannel acoustic signal reproducing apparatus
- Publication number 20020048381
- Publication date Apr 25, 2002
- Ryuzo Tamayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISK DEVICE
- Publication number 20010043542
- Publication date Nov 22, 2001
- KIYOSHI OMORI
- G11 - INFORMATION STORAGE