Koji Yamauchi

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Control system for illumination lamp installed in building equipped...
- Patent number 4,549,092
- Issue date Oct 22, 1985
- Hitachi, Ltd.
- Shigeru Matsuoka
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door operation control apparatus
- Patent number 4,475,069
- Issue date Oct 2, 1984
- Hitachi, Ltd.
- Hiroyuki Tadokoro
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door operation control apparatus
- Patent number 4,393,342
- Issue date Jul 12, 1983
- Hitachi, Ltd.
- Shigeru Matsuoka
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Automatic door control apparatus
- Patent number 4,386,398
- Issue date May 31, 1983
- Hitachi, Ltd.
- Shigeru Matsuoka
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door operation control apparatus
- Patent number 4,383,206
- Issue date May 10, 1983
- Hitachi, Ltd.
- Shigeru Matsuoka
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door operation control apparatus
- Patent number 4,367,470
- Issue date Jan 4, 1983
- Hitachi, Ltd.
- Hiroyuki Tadokoro
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES