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. 18, 2010
Filed:
Sep. 15, 2008
Applicants:
Masami Tomita, Numazu, JP;
Ken Umehara, Chiba, JP;
Inventors:
Masami Tomita, Numazu, JP;
Ken Umehara, Chiba, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an electrostatic image developing toner excellent in blocking resistance at high temperature and humidity, as well as in low temperature-fixing property, having a polyester resin toner binder. Provided is the electrostatic image developing toner containing at least one noncrystalline polyester resin and a crystalline polyester resin, wherein the polyester resins are formed in the presence of at least one titanium-containing catalyst expressed in the following Formulas:Ti(—X)(—OH)O═Ti(—X)(—OR)