Yasuo Soyama

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Joetsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of preparing cylindrical aluminum substrate for electrophoto...
- Patent number 5,237,746
- Issue date Aug 24, 1993
- Mitsubishi Kasei Corporation
- Motohisa Aoki
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...