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:
Mar. 03, 2009
Filed:
Jun. 17, 2004
Yoshinobu Suehiro, Nishikasugai-gun, JP;
Ryoichi Tohmon, Nishikasugai-gun, JP;
Hideaki Kato, Nishikasugai-gun, JP;
Satoshi Wada, Nishikasugai-gun, JP;
Yoshinobu Suehiro, Nishikasugai-gun, JP;
Ryoichi Tohmon, Nishikasugai-gun, JP;
Hideaki Kato, Nishikasugai-gun, JP;
Satoshi Wada, Nishikasugai-gun, JP;
Toyoda Gosei Co., Ltd., Aichi-pref, JP;
Abstract
A light emitting device has a light emitting element portion that radiates light with a predetermined wavelength, and a wavelength conversion portion that surrounds a phosphor to be excited by the light with the predetermined wavelength with a transparent and non-moisture permeability material in the form of laminae. Further, a light emitting device has a plurality of LED elements disposed on a same plane, and a wavelength conversion portion that comprises a flat transparent base member that is disposed opposite to the plurality of LED elements and a phosphor layer that is of a phosphor to be excited by light emitted from the LED element and is formed like a film on the base member. The phosphor layer includes part with no phosphor in plane.