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:
Apr. 19, 2005
Filed:
Oct. 15, 2003
Applicants:
Taiko Motoi, Kanagawa, JP;
Rie Ueno, Kanagawa, JP;
Akiko Iimura, Tochigi, JP;
Shinya Takagi, Kanagawa, JP;
Inventors:
Taiko Motoi, Kanagawa, JP;
Rie Ueno, Kanagawa, JP;
Akiko Iimura, Tochigi, JP;
Shinya Takagi, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B026/00 ; G03G017/04 ; G09G003/34 ;
U.S. Cl.
CPC ...
Abstract
Electrophoretic displaying particles are provided. The particle is comprised of a resin and pigment granules enclosed therein. The pigment granules have an average particle size ranging from 0.1 μm to 20 μm, and the granule diameter distribution has two or more frequency maximums. This electrophoretic displaying particulate has high masking performance, improving the displaying contrast of the displaying device.