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:
Oct. 28, 1980
Filed:
Aug. 08, 1977
Applicant:
Inventors:
Assignee:
Konishiroku Photo Industry Co., Ltd., Nihonbashi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430107 ; 430137 ; 430122 ; 428407 ; 427214 ; 252 6254 ;
Abstract
A one-component developer for developing a latent electrostatic image which comprises magnetic particles, thermoplastic resins and electric charge controlling dyestuffs as main components and in which the magnetic particles are substantially coated with the electric charge controlling dyestuffs. The resulting toner forms no fringe or ghost and has good duplicativity of halftone images. The toner is made by coating the magnetic particles with the electric charge controlling dyestuffs before mixing the magnetic particles with the resin.
Watanabe, Shotaro. (1980). Magnetic toner for developing latent electrostatic images and a process (U.S. Patent No. 4230787). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4230787
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile