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:
Mar. 16, 2010
Filed:
May. 03, 2006
Yusuke Hasegawa, Sunto-gun, JP;
Yoshihiro Ogawa, Numazu, JP;
Junko Nishiyama, Sunto-gun, JP;
Miho Okazaki, Susono, JP;
Takashige Kasuya, Sunto-gun, JP;
Tomohisa Sano, Sunto-gun, JP;
Yusuke Hasegawa, Sunto-gun, JP;
Yoshihiro Ogawa, Numazu, JP;
Junko Nishiyama, Sunto-gun, JP;
Miho Okazaki, Susono, JP;
Takashige Kasuya, Sunto-gun, JP;
Tomohisa Sano, Sunto-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A magnetic toner including at least: a binder resin; and a magnetic body, in which, when magnetization at a magnetic field strength of 397.9 kA/m and a coercive force of the magnetic toner are denoted by σs (Am/kg) and Hc (kA/m), respectively, a magnetic field strength at which the magnetic toner shows a magnetization value equal to 95% of σs is denoted by H95% (kA/m), and a number average particle size of the magnetic body is denoted by d (μm), H95%, Hc, and d satisfy the following expressions.151<H95%<200  (1)7.1<Hc<12  (2)40<<150  (3)