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:
May. 30, 2003
Michio Uchida, Shizuoka, JP;
Akihiko Takeuchi, Shizuoka, JP;
Tomoyuki Araki, Shizuoka, JP;
Tamotsu Kaneko, Shizuoka, JP;
Takaaki Tsuruya, Shizuoka, JP;
Isao Matsuoka, Shizuoka, JP;
Hirotaka Ishii, Shizuoka, JP;
Tomonori Shida, Shizuoka, JP;
Michio Uchida, Shizuoka, JP;
Akihiko Takeuchi, Shizuoka, JP;
Tomoyuki Araki, Shizuoka, JP;
Tamotsu Kaneko, Shizuoka, JP;
Takaaki Tsuruya, Shizuoka, JP;
Isao Matsuoka, Shizuoka, JP;
Hirotaka Ishii, Shizuoka, JP;
Tomonori Shida, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A charging apparatus has a discharging member with a plurality of protrusions and an auxiliary member for assisting discharges by the discharging member, and an insulating member formed among the plurality of protrusions of the discharging member, so that discharge is made between the discharging member and the auxiliary member upon application of a voltage between the discharging member and the auxiliary member. Where an interval among distal ends of the plurality of protrusions of the discharging member is denoted as P and an interval between the discharging member and the auxiliary member is denoted as D, P is at least equal to or greater than D.