Shirou Yamamiya

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Near-infrared transmitting black azo pigments
- Patent number 6,623,556
- Issue date Sep 23, 2003
- Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Yoshiyuki Zama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Pigment dispersants and pigment compositions containing the same
- Patent number 6,471,766
- Issue date Oct 29, 2002
- Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Shigeru Ohki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Near-infrared transmitting black azo pigments
- Publication number 20020121228
- Publication date Sep 5, 2002
- Dainichiseika Color & Chem. Mfg. Co., Ltd.
- Yoshiyuki Zama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Pigment dispersants and pigment compositions containing the same
- Publication number 20010013303
- Publication date Aug 16, 2001
- Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Shigeru Ohki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...