Hiroshi Otsu

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Artificial granite solid material
- Patent number 5,500,259
- Issue date Mar 19, 1996
- Kohjin Co., Ltd.
- Yoshikazu Kubota
- B44 - DECORATIVE ARTS
Information Patent Grant
Artificial granite solid material
- Patent number 5,338,584
- Issue date Aug 16, 1994
- Kohjin Co., Ltd.
- Yoshikazu Kubota
- B44 - DECORATIVE ARTS