Yu Tsukamoto

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Hatogaya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ink composition for writing instrument and writing instrument
- Patent number 8,137,019
- Issue date Mar 20, 2012
- Zebra Co., Ltd.
- Mayumi Yamaguchi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
INK COMPOSITION FOR WRITING INSTRUMENT AND WRITING INSTRUMENT
- Publication number 20100054848
- Publication date Mar 4, 2010
- ZEBRA CO., LTD.
- Mayumi Yamaguchi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...