Ryuichi Hoshikawa

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing water resistant luminous pigments
- Patent number 6,264,855
- Issue date Jul 24, 2001
- Matsui Shikiso Chemical Co., Ltd.
- Yosuke Kitagawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ultraviolet hardening type ink compositions with a temperature-sens...
- Patent number 6,008,269
- Issue date Dec 28, 1999
- Matsui Shikiso Chemical Co., Ltd.
- Yosuke Kitagawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...