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. 04, 2005
Filed:
Aug. 18, 2003
Applicants:
Hiroyuki Sakakibara, Shizuoka, JP;
Yoji Tomoyuki, Tokyo, JP;
Yusuke Nakazono, Shizuoka, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/20 ;
U.S. Cl.
CPC ...
Abstract
A pressure roller has a metal core, an elastic layer of cured rubber composition at least containing a water-absorbing polymer containing water and a surface releasing layer laminated on an outer periphery of the metal core. A compression amount (y) of the elastic layer satisfies the following relationship: y≦0.8 (mm).