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. 13, 2017
Filed:
Aug. 13, 2014
Citizen Electronics Co., Ltd., Yamanashi-ken, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Nodoka Oyamada, Yamanashi-ken, JP;
Kenji Imazu, Saitama-ken, JP;
CITIZEN ELECTRONICS CO., LTD., Yamanashi-Ken, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
Abstract
In a first aspect of the present inventive subject matter, a lighting device includes a light-emitting deviceincluding p-contact and n-contact that are separately arranged from each other on a first surface of the light-emitting element and a phosphor layer including a phosphor particle and covering the light-emitting elementexcept the p-contact and n-contact of the light-emitting element, the phosphor layer includes a higher density of the phosphor particle on a position of the first surface between the p-contact and the n-contact of the light-emitting element than on a position of a second surface that is an opposite surface of the first surfaceof the light-emitting element.