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:
Sep. 24, 1985
Filed:
Apr. 26, 1983
Applicant:
Inventors:
Kazunori Murakawa, Tokyo, JP;
Yasuo Mitsuhashi, Yokohama, JP;
Hitoshi Uchide, Yokohama, JP;
Seiichi Takagi, Tokyo, JP;
Masaki Uchiyama, Tokyo, JP;
Hisayuki Ochi, Tokyo, JP;
Motoo Urawa, Funabashi, JP;
Eiichi Imai, Narashino, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; C03G / ;
U.S. Cl.
CPC ...
430107 ; 106304 ; 252 6251 ; 252 6254 ; 252 6256 ; 4301066 ; 430111 ; 430633 ; 430634 ; 430903 ;
Abstract
A magnetic toner comprises magnetic powders having a particle distribution that the particle size of 50% accumulated volume, the particle size of 25% accumulated volume and the particle size of 75% accumulated volume of the magnetic powders are 1.5-4.5.mu., 1.0-4.0.mu. and 2.5-6.0.mu., respectively. This magnetic toner can produce high density and clear images and further, can produce colorful images.