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. 08, 1980
Filed:
Jan. 18, 1979
Applicant:
Inventors:
Masakazu Yoneyama, Minami-ashigara, JP;
Yasuo Mukunoki, Minami-ashigara, JP;
Takeshi Mikami, Minami-ashigara, JP;
Jun Sasaki, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430449 ; 430223 ; 430224 ; 430372 ; 430377 ; 430382 ; 430512 ; 430544 ; 430546 ; 430565 ; 430569 ; 430957 ; 430958 ;
Abstract
A method for dispersing oil-soluble photographic additives into a hydrophilic colloid composition is disclosed characterized by the use of lecithin in conjunction with an anionic surface active agent containing an --SO.sub.3 M or --OSO.sub.3 M moiety wherein M represents a cation and a hydrophobic group having 8 to 30 carbon atoms.