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:
Feb. 28, 2012
Filed:
Dec. 13, 2010
Naohiro Watanabe, Shizuoka, JP;
Shigeru Emoto, Numazu, JP;
Yohichiroh Watanabe, Fuji, JP;
Masahide Yamada, Numazu, JP;
Tsunemi Sugiyama, Kashiwa, JP;
Masahiro Ohki, Iruma, JP;
Akinori Saitoh, Numazu, JP;
Ryota Inoue, Mishima, JP;
Osamu Uchinokura, Mishima, JP;
Junichi Awamura, Numazu, JP;
Naohiro Watanabe, Shizuoka, JP;
Shigeru Emoto, Numazu, JP;
Yohichiroh Watanabe, Fuji, JP;
Masahide Yamada, Numazu, JP;
Tsunemi Sugiyama, Kashiwa, JP;
Masahiro Ohki, Iruma, JP;
Akinori Saitoh, Numazu, JP;
Ryota Inoue, Mishima, JP;
Osamu Uchinokura, Mishima, JP;
Junichi Awamura, Numazu, JP;
Ricoh Company. Ltd., Tokyo, JP;
Abstract
Toner and a developer which are excellent in cleaning property and fixing property at low temperature, and capable of forming images with high quality are provided, along with a method for their production. A toner producing method involves dispersing and/or emulsifying an oil phase or a monomer phase containing a toner composition and/or a toner composition precursor in a water-based medium to granulate, wherein the toner has an average circularity of 0.925 to 0.970, and the toner composition and/or the toner composition precursor has a layered inorganic material in which at least a part of interlayer ions in the layered inorganic material has been exchanged with organic ions.