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:
Dec. 13, 2011
Filed:
Jul. 03, 2008
Takashi Teshima, Shiojiri, JP;
Satoru Miura, Matsumoto, JP;
Takashi Teshima, Shiojiri, JP;
Satoru Miura, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid developer includes an insulation liquid containing a fatty acid monoester and toner particles comprised of a resin material, the resin material containing a first resin component and a second resin component of which weight-average molecular weight Mwis larger than a weight-average molecular weight Mwof the first resin component. The first resin component and the second resin component are characterized in that the weight-average molecular weight Mwof the first resin component is in the range of 3,000 to 12,000, the weight-average molecular weight Mwof the second resin component is in the range of 20,000 to 400,000, and when an amount of the first resin component contained in the resin material is defined as A (wt %) and an amount of the second resin component contained in the resin material is defined as B (wt %), A and B satisfy a relation: 1.0≦A/B≦9.0. The liquid developer described above is harmless to the environment. Further, the liquid developer also has superior preservability and storage stability and superior fixing characteristics at a low temperature. An image forming apparatus that can suitably use such a liquid developer is also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile