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.

Date of Patent:
Jan. 12, 1988

Filed:

Apr. 02, 1986
Applicant:
Inventors:

Shigeo Hirano, Kanagawa, JP;

Tsutomu Miyasaka, Kanagawa, JP;

Shinsaku Fujita, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430409 ; 430567 ; 430611 ; 430612 ; 430613 ; 430614 ; 430598 ;
Abstract

A direct positive silver halide photographic light-sensitive material is described containing a weak electron donative, adsorptive compound represented by formula (I) or (II) effective for depressing formation of a re-reversed negative image, which is not a spectral sensitizing agent for silver halide or a nucleating agent:


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Hirano, Shigeo. (1988). Direct positive silver halide photographic light-sensitive material (U.S. Patent No. 4719174). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4719174

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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