Rin-ichi Kakuta

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical element substrate
- Patent number 5,198,305
- Issue date Mar 30, 1993
- Asahi Kasei Kogyo Kabushiki Kaisha
- Akihiro Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin composition comprising a polyamide or polycarbonate
- Patent number 4,888,387
- Issue date Dec 19, 1989
- Asahi Kasei Kogyo Kabushiki Kaisha
- Akihiro Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Random copolymer containing hexagonal imide units, a process for pr...
- Patent number 4,820,778
- Issue date Apr 11, 1989
- Asahi Kasei Kokyo Kabushiki Kaisha
- Ikuji Ohtani
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...