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:
Aug. 01, 2006
Filed:
Jan. 20, 2004
Shigeru Emoto, Shizuoka, JP;
Toshiki Nanya, Shizuoka, JP;
Naohito Shimota, Shizuoka, JP;
Maiko Kondo, Shizuoka, JP;
Shinichiro Yagi, Shizuoka, JP;
Hiroto Higuchi, Shizuoka, JP;
Fumihiro Sasaki, Shizuoka, JP;
Takahiro Honda, Shizuoka, JP;
Junichi Awamura, Shizuoka, JP;
Shigeru Emoto, Shizuoka, JP;
Toshiki Nanya, Shizuoka, JP;
Naohito Shimota, Shizuoka, JP;
Maiko Kondo, Shizuoka, JP;
Shinichiro Yagi, Shizuoka, JP;
Hiroto Higuchi, Shizuoka, JP;
Fumihiro Sasaki, Shizuoka, JP;
Takahiro Honda, Shizuoka, JP;
Junichi Awamura, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner is used in an image forming process employing a toner recycling system and contains at least a modified polyester resin, a coloring agent, and a releasing agent. The toner has a volume-average particle diameter Dv, a number-average particle diameter Dn and a shape factor SF-1, wherein Dv is in a range from 4.0 μm to 6.0 μm, the ratio Dv/Dn of Dv to Dn is in a range from 1.00 to 1.30, and the shape factor SF-1 is in a range from 140 to 200.