Yasumasa Fukatsu

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Scanning method for disk player
- Patent number 4,837,637
- Issue date Jun 6, 1989
- Pioneer Electronic Corporation
- Toru Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Automatic sound volume control device
- Patent number 4,553,257
- Issue date Nov 12, 1985
- Pioneer Electronic Corp.
- Shuichi Mori
- H03 - BASIC ELECTRONIC CIRCUITRY