Takahiro Naka

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic tone generator
- Patent number 4,328,731
- Issue date May 11, 1982
- Kabushiki Kaisha Suwa Seikosha
- Mitsuhiro Gotho
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Time signal timepiece
- Patent number 4,211,064
- Issue date Jul 8, 1980
- Kabushiki Kaisha Suwa Seikosha
- Masayuki Ikeda
- G04 - HOROLOGY