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. 01, 2015
Filed:
May. 30, 2013
Citizen Holdings Co., Ltd., Tokyo, JP;
Citizen Electronics Co., Ltd., Yamanashi, JP;
Ryo Tamura, Yamanashi, JP;
Takashi Akiyama, Yamanashi, JP;
CITIZEN HOLDINGS CO., LTD., Tokyo, JP;
CITIZEN ELECTRINOCS CO., LTD., Yamanashi, JP;
Abstract
Providing a lighting device wherein provisions are made to be able to provide a sufficiently high dielectric strength while retaining the required heat-sink property even when a module substrate with a plurality of LED elements mounted thereon is reduced in size. A lighting device includes a module substrate on an upper surface of which are mounted a plurality of LED elements, a heat-sink member, having a raised portion, for dissipating heat generated by the plurality of LED elements, and an insulating sheet formed with an opening and interposed between a portion of the lower surface of the module substrate and the heat-sink member, and wherein the raised portion is formed so as to be located via the opening in close proximity to the lower surface of a region where the plurality of LED elements are mounted on the module substrate.