Shinichiro Ishigaki

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Personal ornament and silver alloy for personal ornament
- Patent number 6,506,267
- Issue date Jan 14, 2003
- Nippon Germanium Laboratory Co., Ltd.
- Hiroshi Fujiyasu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...