Seigo Okumura

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Machida, JP

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Patents Grantslast 30 patents

Information Patent Grant
Anthraquinone compounds and polarizing film containing the same
- Patent number 4,921,959
- Issue date May 1, 1990
- Mitsubishi Chemical Industries Limited
- Konoe Miura
- G02 - OPTICS
Information Patent Grant
Cyclic imido anthraquinone compounds
- Patent number 4,841,057
- Issue date Jun 20, 1989
- Mitsubishi Chemical Industries Limited
- Konoe Miura
- G02 - OPTICS
Information Patent Grant
Polarizing film: polymer film base containing substituted anthraqui...
- Patent number 4,840,640
- Issue date Jun 20, 1989
- Mitsubishi Chemical Industries Limited
- Konoe Miura
- G02 - OPTICS
Information Patent Grant
Process for producing a copolyester
- Patent number 4,782,132
- Issue date Nov 1, 1988
- Mitsubishi Chemical Industries Limited
- Seiichi Nozawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...