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:
Mar. 08, 1994
Filed:
Mar. 24, 1992
Applicant:
Inventors:
Yuzaburo Yoshikawa, Yokohama, JP;
Toshiaki Yamauchi, Yokohama, JP;
Toshiyuki Oba, Yokohama, JP;
Akira Takano, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ; 430111 ;
Abstract
The developing agent comprises a colorant and vinyl-based polymer synthetic resin to which polyolefin waxes having softening points different from each other are added. Due to this softening point difference, the solidification time period for the waxes after fixation is prolonged; therefore the developing agent attains good fixation and anti-offset properties without deteriorating the preservation property and the fluidity of the developing agent.