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:
Oct. 14, 2014
Filed:
Nov. 16, 2012
Hideyuki Santo, Shizuoka, JP;
Masahide Yamada, Shizuoka, JP;
Kazumi Suzuki, Shizuoka, JP;
Shinya Nakayama, Shizuoka, JP;
Atsushi Yamamoto, Shizuoka, JP;
Tatsuya Morita, Kanagawa, JP;
Shingo Sakashita, Shizuoka, JP;
Yukiko Nakajima, Kanagawa, JP;
Keiji Makabe, Shizuoka, JP;
Daiki Yamashita, Kanagawa, JP;
Hideyuki Santo, Shizuoka, JP;
Masahide Yamada, Shizuoka, JP;
Kazumi Suzuki, Shizuoka, JP;
Shinya Nakayama, Shizuoka, JP;
Atsushi Yamamoto, Shizuoka, JP;
Tatsuya Morita, Kanagawa, JP;
Shingo Sakashita, Shizuoka, JP;
Yukiko Nakajima, Kanagawa, JP;
Keiji Makabe, Shizuoka, JP;
Daiki Yamashita, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developer, including a toner including a binder resin comprising a crystalline resin; and a colorant, and a resin carrier comprising a resin; a magnetic particulate material having a magnetic anisotropy, dispersed in the resin, and having a saturated magnetization of from 16 to 30 emu/g, a coercive force of from 15 to 40 kA/m and an average particle diameter not less than 15 μm and less than 100 μm.