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:
Jun. 18, 2019
Filed:
Jan. 31, 2018
Applicants:
Akihiro Takeyama, Kanagawa, JP;
Junichi Watanabe, Shizuoka, JP;
Takahiro Kadota, Shizuoka, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/097 (2006.01); G03G 9/087 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08755 (2013.01); G03G 9/0821 (2013.01); G03G 9/0825 (2013.01); G03G 9/09716 (2013.01); G03G 9/09766 (2013.01);
Abstract
A toner is provided. The toner includes a resin and a fluorine-containing component. The toner satisfies the following formula:5.0≤≤25.0where F(atomic %) represents a content rate of fluorine atom in the toner determined by X-ray photoelectron spectroscopy (XPS) and F(weight %) represents another content rate of fluorine atom in the toner determined by X-ray fluorescence analysis (XRF).