Shinji Okada

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rotary drum assembly for a video tape recorder
- Patent number 5,070,424
- Issue date Dec 3, 1991
- Hitachi, Ltd.
- Hiroaki Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head assembly
- Patent number 4,835,645
- Issue date May 30, 1989
- Hitachi, Ltd.
- Toshio Ohji
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Rotary magnetic head drum apparatus
- Publication number 20050168875
- Publication date Aug 4, 2005
- Hitachi, Ltd
- Shinji Okada
- G11 - INFORMATION STORAGE