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:
May. 21, 1996
Filed:
Mar. 31, 1994
Masaki Ojima, Inagi, JP;
Masaharu Ohkubo, Yokohama, JP;
Hiroki Kisu, Fujisawa, JP;
Kazushige Sakurai, Tokyo, JP;
Michihito Yamazaki, Tokyo, JP;
Yukihiro Ohzeki, Tokyo, JP;
Junichi Kato, Sagamihara, JP;
Hiroto Hasegawa, Kawasaki, JP;
Erika Asano, Tokyo, JP;
Hiroshi Sato, Tokyo, JP;
Katsuhiro Sakaizawa, Tokyo, JP;
Hiroaki Ogata, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing apparatus includes a developer carrying member for carrying developer, an elastic blade press-contacted to the developer carrying member to regulate a layer of developer formed on the developer carrying member, where the elastic blade comprises an electrically conductive layer, and a high resistance layer located at the developer carrying member side of the conductive layer, and an electric field generating device for forming an oscillating electric field between the developer carrying member and the conductive layer, wherein a maximum intensity of the electric field is not less than 10.sup.6 V/m.