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. 31, 2019
Filed:
Dec. 20, 2018
Toyoda Gosei Co., Ltd., Kiyosu-shi, JP;
Masaaki Osawa, Kiyosu, JP;
Masao Kamiya, Kiyosu, JP;
Satoshi Wada, Kiyosu, JP;
Yuhki Kawamura, Kiyosu, JP;
Kento Hayashi, Kiyosu, JP;
TOYODA GOSEI CO., LTD., Kiyosu-Shi, Aichi-Ken, JP;
Abstract
A light-emitting device includes a laser diode element, a wavelength-converting member that absorbs light emitted from the laser diode element and converts wavelength of the light, and a transparent conductive film that is arranged on at least one of a light extracting-side surface and a laser diode element-side surface of the wavelength-converting member. The transparent conductive film is configured such that electrical resistance in a region overlapping the wavelength-converting member increases when the wavelength-converting member is damaged.