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:
Jul. 19, 2005
Filed:
Sep. 25, 2003
Koji Kameyama, Wakayama, JP;
Masahito Yamazaki, Wakayama, JP;
Koji Akiyama, Wakayama, JP;
Hiroyuki Kawaji, Wakayama, JP;
Koji Kameyama, Wakayama, JP;
Masahito Yamazaki, Wakayama, JP;
Koji Akiyama, Wakayama, JP;
Hiroyuki Kawaji, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
A toner comprising a resin binder, a colorant, and fine inorganic particles having a BET specific surface area of 30 m/g or less, wherein the fine inorganic particles are added as an external additive, wherein the toner has a storage modulus at 100° C. using a 25 mm parallel plate of 7×10Pa or less, a storage modulus at 60° C. using a 7.9 mm parallel plate of from 3×10to 1×10Pa, and a storage modulus at 70° C. using a 7.9 mm parallel plate of from 7×10to 3×10Pa; and a two-component developer comprising the toner. The toner can be used for the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.