Yutaka Nakajima

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Mitaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal display device
- Patent number 4,403,832
- Issue date Sep 13, 1983
- Hitachi, Ltd.
- Masashi Tanaka
- G02 - OPTICS
Information Patent Grant
Timepiece with alarm function including annular diaphragm to accomm...
- Patent number 4,362,400
- Issue date Dec 7, 1982
- Hitachi, Ltd.
- Takahiko Ihochi
- G04 - HOROLOGY