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Numazu, JP
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last 30 patents
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Patent Grant
Process for production of black coloring material and cosmetics con...
Patent number
5,358,538
Issue date
Oct 25, 1994
Ihara Chemical Industry Co., Ltd.
Susumu Shimoyama
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for preparation of black coloring materials and application...
Patent number
5,244,469
Issue date
Sep 14, 1993
Ihara Chemical Industry Co., Ltd.
Susumu Shimoyama
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Patent Grant
Production of water-soluble chitin-oligomers by partial hydrolysis...
Patent number
4,804,750
Issue date
Feb 14, 1989
Ihara Chemical Industry Co., Ltd.
Tatsumi Nishimura
C07 - ORGANIC CHEMISTRY