Masaru Tezuka

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical head, optical recording medium recording and/or reproducing...
- Patent number 7,619,959
- Issue date Nov 17, 2009
- Sony Corporation
- Noriaki Nishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc camcorder
- Patent number 7,283,730
- Issue date Oct 16, 2007
- Sony Corporation
- Naoki Inoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and recording and/or reproducing apparatus
- Patent number 7,280,449
- Issue date Oct 9, 2007
- Sony Corporation
- Noriaki Nishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and optical recording medium drive device
- Patent number 7,177,259
- Issue date Feb 13, 2007
- Sony Corporation
- Noriaki Nishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Deterioration estimating method for a light emitting device and a l...
- Patent number 5,625,616
- Issue date Apr 29, 1997
- Sony Corporation
- Shigeaki Koike
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc recording apparatus for recording a signal without losing the...
- Patent number 5,291,467
- Issue date Mar 1, 1994
- Sony Corporation
- Koji Ishiwata
- G11 - INFORMATION STORAGE
Information Patent Grant
Sample data transmission apparatus
- Patent number 5,257,271
- Issue date Oct 26, 1993
- Sony Corporation
- Roger Lagadec
- G11 - INFORMATION STORAGE
Information Patent Grant
Multiple beam optical disk apparatus with multiple clock extracting...
- Patent number 5,239,529
- Issue date Aug 24, 1993
- Sony Corporation
- Satoru Tobita
- G11 - INFORMATION STORAGE
Information Patent Grant
Optically writable record of digital information and recording appa...
- Patent number 5,206,850
- Issue date Apr 27, 1993
- Sony Corporation
- Masaru Tezuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Mode changing apparatus in a tape recorder
- Patent number 4,167,764
- Issue date Sep 11, 1979
- Sony Corporation
- Mitsuru Hanajima
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Optical head, optical recording medium recording and/or reproducing...
- Publication number 20050117494
- Publication date Jun 2, 2005
- SONY CORPORATION
- Noriaki Nishi
- G11 - INFORMATION STORAGE
Information Patent Application
Opticial head and optical recording medium drive device
- Publication number 20040257961
- Publication date Dec 23, 2004
- Noriaki Nishi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical head and recording and/or reproducing apparatus
- Publication number 20040223435
- Publication date Nov 11, 2004
- Noriaki Nishi
- G11 - INFORMATION STORAGE

Masaru Tezuka

Person

Patents Grantslast 30 patents

Optical head, optical recording medium recording and/or reproducing...

Optical disc camcorder

Optical head and recording and/or reproducing apparatus

Optical head and optical recording medium drive device

Deterioration estimating method for a light emitting device and a l...

Disc recording apparatus for recording a signal without losing the...

Sample data transmission apparatus

Multiple beam optical disk apparatus with multiple clock extracting...

Optically writable record of digital information and recording appa...

Mode changing apparatus in a tape recorder

Patents Applicationslast 30 patents

Optical head, optical recording medium recording and/or reproducing...

Opticial head and optical recording medium drive device

Optical head and recording and/or reproducing apparatus