Yoshihito Fujiwara

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Fujioka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil-based ink composition and writing instrument using the same
- Patent number 7,417,080
- Issue date Aug 26, 2008
- Mitsubishi Pencil Co., Ltd.
- Masanao Yano
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
AQUEOUS MARKING INK COMPOSITION
- Publication number 20120316276
- Publication date Dec 13, 2012
- MITSUBISHI PENCIL COMPANY, LIMITED
- Atsushi Iwasa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Oil-based ink composition and writing instrument using the same
- Publication number 20050137285
- Publication date Jun 23, 2005
- Mitsubishi Pencil Co., Ltd.
- Masanao Yano
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...