Kiyokazu Watanabe

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Jyohoku-machi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tape guide structure of rotary head drum in recording/reproduction...
- Patent number 5,734,537
- Issue date Mar 31, 1998
- Hitachi, Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head cylinder device for reduced vibration and prop...
- Patent number 5,661,622
- Issue date Aug 26, 1997
- Hitachi, Ltd.
- Masanori Kochi
- G11 - INFORMATION STORAGE