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:
Jan. 13, 2015
Filed:
Oct. 06, 2008
Applicants:
Shinichi Wakamatsu, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Naohiro Watanabe, Shizuoka, JP;
Tsuyoshi Sugimoto, Mishima, JP;
Inventors:
Shinichi Wakamatsu, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Naohiro Watanabe, Shizuoka, JP;
Tsuyoshi Sugimoto, Mishima, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/09 (2006.01); 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 9/0821 (2013.01); G03G 9/0823 (2013.01); G03G 9/08726 (2013.01); G03G 9/08755 (2013.01); G03G 9/08764 (2013.01); G03G 9/08793 (2013.01);
Abstract
The present invention provides a toner containing at least a binder resin and a pigment, wherein the amount of the pigment in the toner is 3.0% by mass to 8.5% by mass, the volume average particle diameter of the toner is 2.0 μm to 6.0 μm, and a monochrome image, which has been fixed on a recording medium so that the amount of the toner adhered onto the recording medium is 0.25 mg/cm, has a reflection density of 1.2 to 2.5.