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:
Aug. 04, 1981
Filed:
Oct. 22, 1979
Applicant:
Inventors:
Assignee:
TDK Electronics, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; C04B / ; C01G / ; C04B / ;
U.S. Cl.
CPC ...
430107 ; 430109 ; 430111 ; 430137 ; 430903 ; 430904 ; 252 6254 ; 252 6256 ; 252 626 ; 252 6262 ; 252 6264 ;
Abstract
A ferrite powder type magnetic toner used in an electrophotography. It comprises a resinous component and a ferrite having a spinel structure comprising components of iron oxide at a ratio of 99.9 to 51 mole % as Fe.sub.2 O.sub.3 and at least one metal oxide selected from the group consisting of manganese oxide, nickel oxide, cobalt oxide, magnesium oxide, copper oxide, zinc oxide and cadmium oxide at a ratio of 0.1 to 49 mole % as MO wherein M represents Ni, Co, Mg, Cu, Zn or Cd.
Quick Actions:
Makino, Motohiko. (1981). Ferrite powder type magnetic toner used in electrophotography and (U.S. Patent No. 4282302). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4282302
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile