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:
Mar. 04, 1997

Filed:

Feb. 27, 1995
Applicant:
Inventors:

Hideki Naito, Kanagawa, JP;

Hiroki Sasaki, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430214 ; 430215 ; 430220 ; 430222 ; 430628 ; 430546 ;
Abstract

A color diffusion transfer film unit containing an alkali processing element as one of elements constituting the film unit, wherein at least one of the elements contains at least one oligomer or polymer having surface activity. The film unit can contain a small amount of a photographically useful substance in a stable state. The film unit forms a clear image at a high rate of image formation.


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