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. 19, 1993
Filed:
Jan. 29, 1993
Applicant:
Inventors:
Chikao Mimiya, Tokyo, JP;
Satoshi Ito, Tokyo, JP;
Haruhiko Masutomi, Tokyo, JP;
Kazuyoshi Ichikawa, Tokyo, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430569 ; 430567 ; 430568 ;
Abstract
A method of preparing silver halide grains for a photographic emulsion which has a constant mass production qualities and a controlled crystalization technique is disclosed. The first reaction of halides and silver is performed in a mixer with a blades of high speed then the fine crystals of silver halide are kept in an adjusting vessel where monitoring and control devices are provided and the fine crystals are supplied to a parent tank for ripening the crystals prepared in the parent tank.