Masahiko Tatsuma

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Asymmetric dioxazine compound and method for dyeing or printing fib...
- Patent number 6,146,430
- Issue date Nov 14, 2000
- Sumitomo Chemical Company, Limited
- Masahiko Tatsuma
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...