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.:

US 6815137 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 09, 2004

Filed:

Dec. 28, 2001
Applicant:
Inventors:

Satoshi Hoshi, Shizuoka, JP;

Koichi Kawamura, Shizuoka, JP;

Sumiaki Yamasaki, Shizuoka, JP;

Assignee:

Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C 1/72 ; G03F 7/075 ;
U.S. Cl.
CPC ...
G03C 1/72 ; G03F 7/075 ;
Abstract

A process for producing polymer fine particles comprising: dispersing a solution obtained by dissolving a hydrophobic polymer in a solvent immiscible with water in an aqueous phase comprising fine particles of an oxide or hydroxide of at least one element selected from the group consisting of elements belonging to 2 to 15 groups in the periodic table using a surfactant; or dispersing a solution obtained by dissolving a hydrophobic polymer in a solvent immiscible with water in an aqueous phase comprising a water-soluble resin; and then removing the solvent from the oil droplets to form polymer fine particles dispersed in water.


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