IP Library › Granted Patent US 4,499,181
Granted Patent Utility
US 4,499,181 · App. 06/500,406

Photographic recording material with indole redox releaser

Inventors: Kazumasa Watanabe, Hidetaka Deguchi, Shunji Suginaka
Patented Case View Patent ↗
Granted: Feb 12, 1985 Filed: Jun 2, 1983
Inventors
Kazumasa Watanabe
Hidetaka Deguchi
Shunji Suginaka
Assignee (at issue)
Konishiroku Photo Ind. Co., Ltd.

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Quick Facts
Patent No.
US 4,499,181
App. No.
06/500,406
Filed
1983-06-02
Granted
1985-02-12
Kind
A