Kureha Kagaku Kagyo K.K.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Preparation process and purification process of dimeric cyclic este...
- Patent number 5,830,991
- Issue date Nov 3, 1998
- Kureha Kagaku Kagyo K.K.
- Zenya Shiiki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stretched poly(arylene thioether) block copolymer films and product...
- Patent number 4,960,806
- Issue date Oct 2, 1990
- Kureha Kagaku Kagyo K.K.
- Yoshikatsu Satake
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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