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.

Date of Patent:
Oct. 07, 2025

Filed:

Dec. 06, 2021
Applicants:

Masashi Nagayama, Shizuoka, JP;

Kousuke Suzuki, Shizuoka, JP;

Hiroyuki Kishida, Shizuoka, JP;

Tohru Suganuma, Shizuoka, JP;

Minoru Masuda, Shizuoka, JP;

Kento Takeuchi, Shizuoka, JP;

Kaede Masuko, Shizuoka, JP;

Inventors:

Masashi Nagayama, Shizuoka, JP;

Kousuke Suzuki, Shizuoka, JP;

Hiroyuki Kishida, Shizuoka, JP;

Tohru Suganuma, Shizuoka, JP;

Minoru Masuda, Shizuoka, JP;

Kento Takeuchi, Shizuoka, JP;

Kaede Masuko, Shizuoka, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/107 (2006.01); G03G 9/113 (2006.01);
U.S. Cl.
CPC ...
G03G 9/1085 (2020.08); G03G 9/1075 (2013.01); G03G 9/1131 (2013.01); G03G 9/1136 (2013.01);
Abstract

A carrier for forming an electrophotographic image is provided. The carrier comprises a core particle and a coating layer coating the core particle. The coating layer contains chargeable particles and a dispersant. The carrier has an apparent density of from 2.0 g/cmor greater but less than 2.5 g/cm.


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