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:
Jul. 07, 2026
Filed:
Mar. 01, 2023
Applicants:
Masashi Nagayama, Shizuoka, JP;
Tomomi Suzuki, Shizuoka, JP;
Kento Takeuchi, Shizuoka, JP;
Tohru Suganuma, Shizuoka, JP;
Inventors:
Masashi Nagayama, Shizuoka, JP;
Tomomi Suzuki, Shizuoka, JP;
Kento Takeuchi, Shizuoka, JP;
Tohru Suganuma, Shizuoka, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 9/107 (2006.01); G03G 9/113 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0889 (2013.01); G03G 9/1085 (2020.08); G03G 9/1139 (2013.01); G03G 15/0808 (2013.01); G03G 2215/0607 (2013.01);
Abstract
A carrier for electrophotographic image formation includes carrier particles. Each of the carrier particles includes a core particle and a coating layer covering the core particle. The coating layer includes diantimony pentoxide-containing particles.