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:
Jun. 07, 2005
Filed:
Apr. 17, 2002
Applicants:
Takahiro Hosokawa, Susono, JP;
Harumi Ishiyama, Numazu, JP;
Yasunori Chigono, Susono, JP;
Jun Hirabayashi, Numazu, JP;
Inventors:
Takahiro Hosokawa, Susono, JP;
Harumi Ishiyama, Numazu, JP;
Yasunori Chigono, Susono, JP;
Jun Hirabayashi, Numazu, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03G015/02 ;
U.S. Cl.
CPC ...
Abstract
A charging member for charging a member to be charged, includes an elastic foam member provided at a surface of the charging member. The elastic foam member includes a plurality of cell portions with wall portion defining the cell portions. The gaps connecting the cell portions have areas which are not less than 5% and not more than 50%, for respective cells.