Isao Hagiwara

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Toyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Controlling device for an automatic door
- Patent number 4,697,383
- Issue date Oct 6, 1987
- Yoshida Kogyo K. K.
- Isao Hagiwara
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Control system for an automatic door
- Patent number 4,673,848
- Issue date Jun 16, 1987
- Yoshida Kogyo K. K.
- Isao Hagiwara
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Apparatus for providing an optimal opening and closing of a door
- Patent number 4,449,078
- Issue date May 15, 1984
- Yoshida Kogyo K. K.
- Masaaki Ogishi
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES