Toshio Takei

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Hasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Benzimidazolone compound
- Patent number 7,371,870
- Issue date May 13, 2008
- Dainippon Ink and Chemicals, Inc.
- Masaki Hosaka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production method of beta-type copper phthalocyanine pigment
- Patent number 5,831,083
- Issue date Nov 3, 1998
- Dainippon Ink and Chemicals, Inc.
- Kouji Ohno
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for producing dimethylaminomethyl copper phthalocyanine and...
- Patent number 4,888,422
- Issue date Dec 19, 1989
- Dainippon Ink and Chemicals, Inc.
- Toshio Takei
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for producing dimethylaminomethyl copper phthalocyanine and...
- Patent number 4,810,297
- Issue date Mar 7, 1989
- Dainippon Ink and Chemicals, Inc.
- Toshio Takei
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Benzimidazolone compound
- Publication number 20060058531
- Publication date Mar 16, 2006
- Masaki Hosaka
- C07 - ORGANIC CHEMISTRY