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:
Jul. 31, 1989
Filed:
Apr. 15, 1987
Applicant:
Inventors:
Toshio Saito, Tokyo, JP;
Akihiko Kabasawa, Tokyo, JP;
Masami Ishikura, Tokyo, JP;
Sadayuki Miyazawa, Tokyo, JP;
Nobuo Suzuki, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430564 ; 430567 ; 430627 ; 430935 ; 430569 ;
Abstract
In a process for producing a silver halide emulsion through mixing a halide solution and a silver nitrate solution in the presence of a hydrophilic colloid, the improvement is disclosed wherein any part of the equipment that is employed in the process starting with the initiation of silver halide formation and ending with the coating of the emulsion on a support and with which the reaction solution will come in contact is made of a stainless steel having a molybdenum content of 2.2-5.0 wt %.