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:
Apr. 29, 2008
Filed:
Oct. 15, 2004
Koichi Fukasawa, Fujiyoshida, JP;
Nodoka Oishi, Fujiyoshida, JP;
Koichi Fukasawa, Fujiyoshida, JP;
Nodoka Oishi, Fujiyoshida, JP;
Citizen Electronics Co., Ltd., Yamanashi, JP;
Abstract
A white LED () for emitting illumination light entirely to exterior, comprising a first LED element () and a second LED element () which have mutually different emission wavelengths, and a sealing member () including a fluorescent material () which is excited to emit yellow light (sy) and for sealing at least the first LED element, the first LED element () being a long wave length-blue LED element for emitting blue light (sb) of a long wave length in which a peak wave length is in the range of 470 nm to 490 nm, the second LED element being a red LED element for emitting red light (sr).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile