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. 28, 1985
Filed:
May. 31, 1983
Applicant:
Inventors:
Hiroshi Yamazaki, Hino, JP;
Kiyoshi Tamaki, Hino, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
4301066 ; 430111 ; 430138 ;
Abstract
There is disclosed a magnetic toner comprising a magnetic powder and a compound having the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, A and M are the same as defined in the specification. The magnetic toner of the present invention has a high degree of blackening and permits the stable formation of a sharp image.