Yoshitsugu Morikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Push button switch and method for manufacturing same
- Patent number 5,270,507
- Issue date Dec 14, 1993
- Shin-Etsu Polymer Co., Ltd.
- Akio Nakamura
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Keyboard switch assembly
- Patent number 4,527,021
- Issue date Jul 2, 1985
- Shin-Etsu Polmer Co., Ltd.
- Yoshitsugu Morikawa
- H01 - BASIC ELECTRIC ELEMENTS