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. 22, 1999
Filed:
Jul. 30, 1997
Ichiro Demizu, Toyonaka, JP;
Yoshikazu Nishihara, Itami, JP;
Yoshihiro Mikuriya, Amagasaki, JP;
Takeshi Ishida, Nara, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
In the present invention, in carrying out reversal development of an electrostatic latent image formed on a positively charged amorphous silicon type photoreceptor, a developer including positively charged toner particles containing binder resin and a colorant, first inorganic fine particles having a number-average particle diameter of 0.1 to 3 .mu.m, and second inorganic fine particles subjected to surface treatment by a hydrophobic agent and having an average primary particle diameter of 0.005 to 0.02 .mu.m is used.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile