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. 17, 1981
Filed:
May. 31, 1979
Mitsuo Saito, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Abstract
A process for forming light-sensitive silver halide crystals by adding silver ion and halide ion in the presence of a protective colloid, which comprises producing seed crystals containing multiple twin crystal grains during a crystal nuclei-forming period, maintaining the pBr of the system at about 4.8 to 2.0 during at least the first third of the subsequent crystal-growing period, and increasing the rates of silver ion and halide ion addition to levels at which the crystal growth rate becomes about 30 to 100% of the critical crystal growth rate throughout said crystal-growing period..
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile