Tosaku Amakawa

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Fujieda, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shell-molding resin coated sand
- Patent number 4,459,377
- Issue date Jul 10, 1984
- Sumitomo Durez Company, Ltd.
- Yukio Saeki
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for coating electric or electronic elements
- Patent number 4,122,211
- Issue date Oct 24, 1978
- Sumitomo Durez Company, Ltd.
- Toyoji Kikuga
- H01 - BASIC ELECTRIC ELEMENTS