Naobumi Nagasawa

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Gunma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Signal processing circuit for an optical disk player including data...
- Patent number 5,777,955
- Issue date Jul 7, 1998
- Sanyo Electric Co., Ltd.
- Osamu Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Circuit and method for searching track on CD
- Patent number 5,623,460
- Issue date Apr 22, 1997
- Sanyo Electric Co., Ltd.
- Naobumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Circuit and method for searching track on CD
- Patent number 5,140,570
- Issue date Aug 18, 1992
- Sanyo Electric Co., Ltd.
- Naobumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and circuit for detecting data error
- Patent number 5,068,856
- Issue date Nov 26, 1991
- Sanyo Electric Co., Ltd.
- Naobumi Nagasawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Integrated circuit for generating indexing data in a CD player
- Patent number 4,932,018
- Issue date Jun 5, 1990
- Sanyo Electric Co., Ltd.
- Naobumi Nagasawa
- G11 - INFORMATION STORAGE