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. 31, 2019
Filed:
Mar. 13, 2018
Applicants:
Hiroshi Yamashita, Shizuoka, JP;
Suzuka Karato, Shizuoka, JP;
Yuka Mizoguchi, Shizuoka, JP;
Shizuka Hashida, Saitama, JP;
Inventors:
Hiroshi Yamashita, Shizuoka, JP;
Suzuka Karato, Shizuoka, JP;
Yuka Mizoguchi, Shizuoka, JP;
Shizuka Hashida, Saitama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/09 (2006.01); G03G 15/08 (2006.01); G03G 9/087 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0926 (2013.01); G03G 9/0804 (2013.01); G03G 9/087 (2013.01); G03G 9/0825 (2013.01); G03G 15/08 (2013.01); G03G 2215/0872 (2013.01);
Abstract
A toner is provided. The toner includes toner particles each comprising a binder resin and plate-like pigment particles. In a cross-section of the toner, the plate-like pigment particles have an average thickness D of 1.0 μm or less and a maximum length L of 5.0 μm or more. In a fixed toner image formed with the toner, the plate-like pigment particles have a maximum width W of 3.0 μm or more. The toner has a circularity of from 0.950 to 0.985.