Bis-formazan dyes

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording medium
- Patent number 6,762,008
- Issue date Jul 13, 2004
- Ricoh Company, Ltd.
- Tsutomu Satoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Formazane compounds and method of dyeing using the same
- Patent number 6,653,454
- Issue date Nov 25, 2003
- Nippon Kayaku Kabushiki Kaisha
- Mariko Umeda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Iron-complexed formazan dyes for polyamide and protein substrates
- Patent number 5,677,434
- Issue date Oct 14, 1997
- North Carolina State University
- Harold S. Freeman
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Metallized bis-formazans
- Patent number 4,158,003
- Issue date Jun 12, 1979
- Ciba-Geigy AG
- Otto Bitterlin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3698908
- Patent number 3,698,908
- Issue date Oct 17, 1972
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
3547901
- Patent number 3,547,901
- Issue date Dec 15, 1970
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...