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:
Apr. 29, 2025
Filed:
May. 12, 2021
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Yasuo Kamada, Shizuoka, JP;
Hiroshi Yamada, Shizuoka, JP;
Akinori Saitoh, Shizuoka, JP;
Akio Takei, Shizuoka, JP;
Toma Takebayashi, Shizuoka, JP;
Masahiro Yukikawa, Kanagawa, JP;
Assignee:
Ricoh Technology, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2005.12); G03G 9/097 (2005.12); G03G 15/08 (2005.12);
U.S. Cl.
CPC ...
G03G 9/0825 (2012.12); G03G 9/0802 (2012.12); G03G 9/09733 (2012.12); G03G 15/0865 (2012.12);
Abstract
A toner includes toner base particles each including: a binder resin, a colorant, and wax; and resin particles on surfaces of the toner base particles. A standard deviation of a distance between the resin particles next to each other on the surfaces of the toner base particles is less than 500 nm.