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. 29, 2009
Filed:
Jan. 27, 2005
Yoneji Kobayashi, Kodaira, JP;
Yoichi Nishimuro, Kodaira, JP;
Yoneji Kobayashi, Kodaira, JP;
Yoichi Nishimuro, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
White color particles for display media used for an information display device, in which particles including at least the white color particles or liquid powders including at least the white color particles (W) are sealed between two substrates, at least one substrate being transparent, and, in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image, is characterized in that the improvement is composed of resins made of methylpentene or cycloolefin and titanium oxide. Moreover, as a preferred embodiment, a white color reflectance is not less than 40%, and, the improvement has a heat resistance such that no fusion bond is detected after the white color particles are sprayed on a glass substrate heated at 120 ° C. and the heating state of the heated glass substrate is kept for 30 minutes. In this manner, it is possible to provide the white color particles for display media having an excellent white color reflectance, a high contrast on the display image and a sufficient heat resistance.