Ryousuke Hatanaka

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Sayamashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Head plate operating mechanism for cassette tape player
- Patent number 4,873,597
- Issue date Oct 10, 1989
- Nihon Technical Kabushiki Kaisha
- Ryousuke Hatanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape player
- Patent number 4,802,039
- Issue date Jan 31, 1989
- Nihon Technical Kabushiki Kaisha
- Ryousuke Hatanaka
- G11 - INFORMATION STORAGE