Hiroshi Miyasaka

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sound generating circuit for timepiece
- Patent number 4,481,852
- Issue date Nov 13, 1984
- Rhythm Watch Company Limited
- Shunichi Makuta
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Time correcting circuit for timepiece with electrochromic display
- Patent number 4,371,268
- Issue date Feb 1, 1983
- Rhythm Watch Company Limited
- Hiroshi Miyasaka
- G04 - HOROLOGY