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:
Dec. 24, 2024
Filed:
Aug. 24, 2021
Applicant:
Fujifilm Business Innovation Corp., Tokyo, JP;
Inventors:
Takuro Watanabe, Minamiashigara, JP;
Kazutsuna Sasaki, Minamiashigara, JP;
Yosuke Tsurumi, Minamiashigara, JP;
Yasuo Kadokura, Minamiashigara, JP;
Karin Sakai, Minamiashigara, JP;
Assignee:
FUJIFILM Business Innovation Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/083 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0839 (2013.01); G03G 9/0834 (2013.01); G03G 9/0836 (2013.01); G03G 9/0837 (2013.01);
Abstract
An electrostatic charge image developing carrier includes a magnetic particle and a coating resin layer that covers the magnetic particle and contains a silica particle, and a ratio of Si on a surface of the coating resin layer, determined by an X-ray photoelectron spectroscopy (XPS), is 6 atom % or more and 12 atom % or less.