Kuniharu Yamada

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Suwa, JA

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Patents Grantslast 30 patents

Information Patent Grant
Variable capacitor
- Patent number 4,068,285
- Issue date Jan 10, 1978
- Kabushiki Kaisha Suwa Seikosha
- Kuniharu Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electro-chromic display device
- Patent number 4,006,969
- Issue date Feb 8, 1977
- Kabushiki Kaisha Suwa Seikosha
- Akihiko Kouchi
- G02 - OPTICS