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:
Mar. 21, 1989
Filed:
May. 06, 1988
Hideaki Hirahara, Sagamihara, JP;
Tatsuo Takabe, Mitaka, JP;
Kazuya Ishida, Sagamihara, JP;
Hiromitsu Saijo, Toyokawa, JP;
Shinya Matsuda, Toyokawa, JP;
Masaru Komura, Toyokawa, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
An electrostatic latent image developing apparatus has a developing sleeve, an agitating roller rotatable in the same direction as the developing sleeve and a magnetic device fixedly provided within the developing sleeve and having a plurality of N and S poles which include auxiliary poles of the same polarity adjacent to each other circumferentially of the sleeve and opposed to the agitating roller. A developer restraining plate between the developing sleeve and the agitating roller has a first guide surface for guiding the developer supplied by the agitating roller and a second guide surface for limiting the developer used from moving toward the sleeve portion to which the developer is supplied by the agitating roller.