Yoshimi Kikuchi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a disazo pigment and disazo pigment manufac...
- Patent number 5,958,128
- Issue date Sep 28, 1999
- Toyo Ink Manufacturing Co., Ltd.
- Yoshimi Kikuchi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the production of 2,5-di(arylamino)-3,6-dihydroterephth...
- Patent number 5,817,817
- Issue date Oct 6, 1998
- Toyo Ink Manufacturing Co., Ltd.
- Hitoshi Maki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of 2,5-di(arylamino)-3,6-dihydroterephth...
- Patent number 5,659,036
- Issue date Aug 19, 1997
- Toyo Ink Manufacturing Co., Ltd.
- Hitoshi Maki
- C07 - ORGANIC CHEMISTRY