Tetsuo Ariyoshi

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Kokubunji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Information reproducing method and information reproducing apparatu...
- Patent number 7,123,565
- Issue date Oct 17, 2006
- Hitachi, Ltd.
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and optical disk apparatus
- Patent number 7,068,572
- Issue date Jun 27, 2006
- Hitachi, Ltd.
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and optical disk apparatus
- Patent number 6,807,133
- Issue date Oct 19, 2004
- Hitachi, Ltd.
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens optical system, optical head and optical information...
- Patent number 6,791,934
- Issue date Sep 14, 2004
- Hitachi, Ltd.
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk having a plurality of information recording units
- Patent number 6,728,197
- Issue date Apr 27, 2004
- Hitachi, Ltd.
- Harukazu Miyamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording/reproducing apparatus, and optical he...
- Patent number 6,563,099
- Issue date May 13, 2003
- Hitachi, Ltd.
- Shigeharu Kimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk medium
- Patent number 6,524,766
- Issue date Feb 25, 2003
- Hitachi, Ltd.
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Optical head and optical disk apparatus
- Publication number 20050025000
- Publication date Feb 3, 2005
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE
Information Patent Application
Information reproducing method and information reproducing apparatu...
- Publication number 20040095860
- Publication date May 20, 2004
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens optical system, optical head and optical information...
- Publication number 20030076767
- Publication date Apr 24, 2003
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk
- Publication number 20030053403
- Publication date Mar 20, 2003
- Harukazu Miyamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical head and optical disk apparatus
- Publication number 20020176331
- Publication date Nov 28, 2002
- Tetsuo Ariyoshi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording/reproducing apparatus, and optical he...
- Publication number 20020070328
- Publication date Jun 13, 2002
- Hitachi, Ltd.
- Shigeharu Kimura
- G11 - INFORMATION STORAGE