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:
Nov. 11, 2008
Filed:
Nov. 01, 2005
Tatsuo Imafuku, Nara, JP;
Takahiro Bito, Nara, JP;
Eiji Tenjiku, Nara, JP;
Takeshi Satoh, Yamatokoriyama, JP;
Takeshi Ohkawa, Yamatokoriyama, JP;
Akiko Tsujimoto, Yamatokoriyama, JP;
Tatsuo Imafuku, Nara, JP;
Takahiro Bito, Nara, JP;
Eiji Tenjiku, Nara, JP;
Takeshi Satoh, Yamatokoriyama, JP;
Takeshi Ohkawa, Yamatokoriyama, JP;
Akiko Tsujimoto, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A toner for electrostatic image development, which contains toner particles in which not more than 13 percent by number of the toner particles have a particle diameter of smaller than 4 μm, not less than 20 percent by number of the toner particles have a particle diameter of 4 μm to 6 μm, and not more than 2.0 percent by volume of the toner particles have a particle diameter of 16 μm or greater. The toner particles have a volume average diameter of 4 μm to 9 μm, and at least an external additive is added to the toner particles.