Yoshiaki Itoh

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Low alloy sintered steel and method of preparing the same
- Patent number 5,427,600
- Issue date Jun 27, 1995
- Sumitomo Electric Industries, Ltd.
- Yoshiaki Itoh
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of producing aluminum base alloy containing silicon
- Patent number 5,022,455
- Issue date Jun 11, 1991
- Sumitomo Electric Industries, Ltd.
- Yoshinobu Takeda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Aluminum-silicon alloy heatsink for semiconductor devices
- Patent number 4,926,242
- Issue date May 15, 1990
- Sumitomo Electric Industries, Ltd.
- Yoshiaki Itoh
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing material for semiconductor device
- Patent number 4,830,820
- Issue date May 16, 1989
- Sumitomo Electric Industries, Ltd.
- Yoshiaki Itoh
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...