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. 10, 2017
Filed:
Mar. 20, 2015
Applicant:
Casio Computer Co., Ltd., Shibuya-ku, Tokyo, JP;
Inventors:
Kenji Kihira, Kiyose, JP;
Hideki Ikeda, Hamura, JP;
Yuichiro Iegaki, Kodaira, JP;
Yuta Kan, Tokorozawa, JP;
Hideki Hasegawa, Higashimurayama, JP;
Assignee:
CASIO COMPUTER CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08755 (2013.01); G03G 9/081 (2013.01); G03G 9/08711 (2013.01); G03G 9/08748 (2013.01); G03G 9/08795 (2013.01); G03G 9/08797 (2013.01);
Abstract
An electrophotographic toner which is excellent in grindability, fixing property and durability by being obtained via a step of melt-kneading a mixture containing an amorphous bioplastic having a weight-average molecular weight (Mw) of 55000 to 120000, a terpene phenol resin, and a styrene acrylic resin having a weight-average molecular weight (Mw) of 85500 to 118000 so as to obtain a kneaded mixture, and a step of grinding the kneaded mixture after hardening.