IP Library › Granted Patent US 4,438,256
Granted Patent Utility
US 4,438,256 · App. 06/482,417

Copolyamide acid and copolyimide

Inventors: Takayuki Ohta, Yukio Yanaga, Seiichi Hino
Patented Case View Patent ↗
Granted: Mar 20, 1984 Filed: Apr 6, 1983
Inventors
Takayuki Ohta
Yukio Yanaga
Seiichi Hino
Assignee (at issue)
Mitsubishi Chemical Industries, Ltd.

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Quick Facts
Patent No.
US 4,438,256
App. No.
06/482,417
Filed
1983-04-06
Granted
1984-03-20
Kind
A