The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 1979
Filed:
Aug. 17, 1977
Applicant:
Inventors:
Shigeru Nakamura, Minami-ashigara, JP;
Isao Shimamura, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
96 55 ; 96 22 ; 96 6 / ; 96 6 / ;
Abstract
A method for forming images which comprises image-amplifying an image-wise exposed photographic element comprising a support having thereon at least one silver halide photographic layer containing an image-wise distributed material having a catalytic action by processing the photographic element with a solution containing (1) at least one cobalt (III) complex and (2) at least one organic phosphonic acid compound in the presence of a reducing agent.
Nakamura, Shigeru. (1979). Method for forming photographic images (U.S. Patent No. 4172726). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4172726
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile