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:
May. 05, 2015
Filed:
Oct. 18, 2011
Applicants:
Masana Shiba, Shizuoka, JP;
Ryuta Chiba, Miyagi, JP;
Tsuneyasu Nagatomo, Shizuoka, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0819 (2013.01); G03G 9/0804 (2013.01); G03G 9/0806 (2013.01); G03G 9/0827 (2013.01); G03G 9/08755 (2013.01); G03G 9/08782 (2013.01); G03G 9/08795 (2013.01);
Abstract
A toner contains a binder resin, a colorant, and a releasing agent, wherein the toner contains toner particles, and wherein a proportion of the toner particles containing one or more voids having diameters Dof larger than 0.0 μm but 0.5 μm or smaller is more than 5.0% to 60%, and a proportion of the toner particles containing one or more voids having diameters Dof 1.0 μm or larger is 10% or less.