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:
Apr. 26, 1983
Filed:
Oct. 07, 1981
Kazuo Isaka, Kawasaki, JP;
Kimio Nakahata, Kawasaki, JP;
Masaaki Sakurai, Hanno, JP;
Tsuyoshi Watanabe, Kawasaki, JP;
Fumitaka Kan, Tokyo, JP;
Kenji Takeda, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A development apparatus has a developer supporting member having a magnet therein and a thickness controlling member for the developer, the developer being a magnetic one-component developer which is applied to the surface of the developer supporting member by means of the thickness controlling member, the applied surface of the developer supporting member being brought into a position opposed to a latent-image carrying member to develop the latent image thereon, the surface of the developer supporting member being roughened by sand blast treatment with irregularly shaped and/or sized particles.