IP Library › Granted Patent US 4,840,879
Granted Patent Utility
US 4,840,879 · App. 07/153,519

Direct positive image-forming process

Inventors: Atushi Kamitakahara, Keiji Ogi
Patented Case View Patent ↗
Granted: Jun 20, 1989 Filed: Jan 29, 1988
Inventors
Atushi Kamitakahara
Keiji Ogi
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.

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Quick Facts
Patent No.
US 4,840,879
App. No.
07/153,519
Filed
1988-01-29
Granted
1989-06-20
Kind
A