Masao Takakuwa

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Sayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Information carrier, having a roughened surface, method of manufact...
- Patent number 4,657,419
- Issue date Apr 14, 1987
- Toho- Polymer Kabushiki Kaisha
- Masao Takakuwa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Membrane switch having spacer posts
- Patent number 4,463,232
- Issue date Jul 31, 1984
- Toho- Polymer Kabushiki Kaisha
- Masao Takakuwa
- H01 - BASIC ELECTRIC ELEMENTS