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. 19, 2006
Filed:
Jun. 12, 2002
Teruhiko Iwase, Nagoya, JP;
Seki Yamaguchi, Minamiashigara, JP;
Yoshifumi Iida, Minamiashigara, JP;
Masanori Ichimura, Minamiashigara, JP;
Yoko Tomita, Ebina, JP;
Yasuyuki Kobayashi, Ebina, JP;
Teruhiko Iwase, Nagoya, JP;
Seki Yamaguchi, Minamiashigara, JP;
Yoshifumi Iida, Minamiashigara, JP;
Masanori Ichimura, Minamiashigara, JP;
Yoko Tomita, Ebina, JP;
Yasuyuki Kobayashi, Ebina, JP;
Denso Corporation, Kariya, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of pinholes per unit area of the background portion is no greater than 1×10%. A method of manufacturing the display panel is also disclosed. The background portion has a transparent optical density of 3.0 or greater and an image portion has a transparent optical density of 1.0 or less, and preferably 0.1 to 1. A toner used for electrophotographically forming the background portion and the image portion has a number average molecular weight of 1,000 to 6,000 and a weight average molecular weight of 30,000 to 150,000 as measured by gel permeation chromatography with respect to a portion of the toner dissolved in tetrahydrofuran, and has respective molecular weight distribution peaks in molecular weight ranges of 1000 to 10,000 and 100,000 to 1,500,000.