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:
Feb. 13, 2007
Filed:
Feb. 12, 2004
Applicant:
Seiji Yamashita, Minami-ashigara, JP;
Inventor:
Seiji Yamashita, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electroluminescence device, including phosphor particles, which phosphor particles give donor-acceptor type luminescence, and have an average equivalent sphere diameter of 1.0 μm or more and 12.0 μm or less and a coefficient of variation of equivalent sphere diameters of 3% or more and 30% or less.