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:
Sep. 03, 2024
Filed:
Aug. 20, 2021
Applicants:
Yuka Mizoguchi, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Junichi Watanabe, Shizuoka, JP;
Tomomi Harashima, Kanagawa, JP;
Inventors:
Yuka Mizoguchi, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Junichi Watanabe, Shizuoka, JP;
Tomomi Harashima, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08755 (2013.01); G03G 9/0804 (2013.01); G03G 9/0821 (2013.01); G03G 9/08711 (2013.01); G03G 15/0813 (2013.01);
Abstract
A toner includes a crystalline polyester resin and an amorphous polyester resin. A ratio of the storage modulus of the toner G' (T) at a temperature Tto the storage modulus of the toner G′ (T+3) at a temperature T+3 is greater than or equal to 10, in a case where the temperature Tis within a range from 50° C. to 65° C.