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:
Nov. 08, 1977
Filed:
Feb. 12, 1975
Applicant:
Inventors:
Teiji Habu, Hino, JA;
Tsuneo Wada, Hino, JA;
Takashi Sasaki, Hino, JA;
Shigemasa Itoh, Hino, JA;
Takayoshi Ohmura, Hino, JA;
Hiroki Ishii, Hino, JA;
Hisashi Yamaguchi, Hino, JA;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09H / ;
U.S. Cl.
CPC ...
260117 ; 96111 ;
Abstract
This invention relates to a method of hardening gelatin which is accomplished by combining a compound containing at least one carbo-di-imide group with a compound having at least two vinyl sulfonyl groups. This combination has application to the photographic industry by providing a method of hardening the type of gelatin which is used in a gelatin -- containing photographic layer of a light-sensitive halide photographic material.