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. 29, 1989
Filed:
Oct. 30, 1987
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, , JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355245 ; 118657 ;
Abstract
An image forming apparatus utilizing two types of toners. The first toner is of a type that causes the charge thereon to increase over time, while the second toner is a type in which the charge decreases over time. The storage chamber for the apparatus holds a two-component developing agent formed of a carrier and a first toner. In proportion to the consumption of the first toner during the printing process, the second toner is resupplied from a toner hopper to the developing agent in the storage chamber.
Ichihara, Issey. (1989). Image forming apparatus and method (U.S. Patent No. 4862213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4862213
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile