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:
Jan. 21, 2020
Filed:
Nov. 10, 2015
Applicant:
Toyoda Gosei Co., Ltd., Kiyosu-shi, JP;
Inventors:
Tomohiro Miwa, Kiyosu, JP;
Kazuhiro Sakai, Kiyosu, JP;
Shota Shimonishi, Kiyosu, JP;
Shigeo Takeda, Kiyosu, JP;
Assignee:
TOYODA GOSEI CO., LTD., Kiyosu-Shi, Aichi-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21K 9/60 (2016.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01); F21Y 105/10 (2016.01);
U.S. Cl.
CPC ...
F21K 9/60 (2016.08); F21Y 2105/10 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08);
Abstract
A light emitting device includes a plurality of LED strings connected in parallel, wherein: each of the LED strings includes a plurality of LED chips connected in series to each other; in the LED string, ultraviolet light LED chips and blue LED chips or violet LED chips and blue LED chips are connected in series to each other; and the number of the ultraviolet light LED chips or the number of the violet LED chips is the same as the number of the blue LED chips in each of the plurality of LED strings.