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:
Jun. 26, 2007
Filed:
Apr. 02, 2004
Norihiko Kaga, Kodaira, JP;
Gaku Yakushiji, Higashiyamato, JP;
Hare Tazawa, Kodaira, JP;
Maki Masutani, Tokorozawa, JP;
Taichi Kobayashi, Kodaira, JP;
Toshiaki Arai, Funabashi, JP;
Kazuya Murata, Hino, JP;
Ryo Sakurai, Kokubunji, JP;
Yoneji Kobayashi, Kodaira, JP;
Hajime Tamura, Kawasaki, JP;
Hiroyuki Anzai, Mitaka, JP;
Hirotaka Yamazaki, Kunitachi, JP;
Yoichi Nishimuro, Kodaira, JP;
Kunio Machida, Kodaira, JP;
Norihiko Kaga, Kodaira, JP;
Gaku Yakushiji, Higashiyamato, JP;
Hare Tazawa, Kodaira, JP;
Maki Masutani, Tokorozawa, JP;
Taichi Kobayashi, Kodaira, JP;
Toshiaki Arai, Funabashi, JP;
Kazuya Murata, Hino, JP;
Ryo Sakurai, Kokubunji, JP;
Yoneji Kobayashi, Kodaira, JP;
Hajime Tamura, Kawasaki, JP;
Hiroyuki Anzai, Mitaka, JP;
Hirotaka Yamazaki, Kunitachi, JP;
Yoichi Nishimuro, Kodaira, JP;
Kunio Machida, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
An image display device, in which image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image. A construction of particles used as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and a material of the particles used as the image display media is improved (the third, seventh and tenth aspects of the invention). Whiteness of the particles and a liquid powder using the particles is improved, particle agglutination is prevented, and the charge property is controlled. Moreover, durability is improved such that a contrast of the image display during a repetition display is not decreased. As a result, an excellent image display can be achieved.