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. 30, 2014
Filed:
Jun. 18, 2013
Toyoda Gosei Co., Ltd., Kiyosu-shi, JP;
Shigeo Takeda, Kiyosu, JP;
Tomohiro Miwa, Kiyosu, JP;
Shota Shimonishi, Kiyosu, JP;
Hiroyuki Tajima, Kiyosu, JP;
Toyoda Gosei Co., Ltd., Kiyosu-Shi, Aichi-Ken, JP;
Abstract
The present invention provides a light-emitting device which includes a plurality of LED chips mounted on a chip mount surface of a substrate provided with a wiring pattern. In the light-emitting device, the wiring pattern is provided so as to meet the following conditions (a), (b), and (c). (a) The wiring pattern divides the chip mount surface into at least three divided areas in a radial fashion from a center of the chip mount surface, and includes radial elements and circumferential elements so as to surround divided areas. (b) Of two radial elements and one circumferential element which surround each divided area as viewed from the individual divided area, one or two elements form part of a positive electrode pattern, and the remainder forms part of a negative electrode pattern. (c) There is only one radial element between adjoining ones of the divided areas.