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:
Mar. 17, 2020
Filed:
Oct. 25, 2016
Riken, Saitama, JP;
Panasonic Corporation, Osaka, JP;
Hideki Hirayama, Saitama, JP;
Masafumi Jo, Tokyo, JP;
Takuya Mino, Osaka, JP;
Norimichi Noguchi, Osaka, JP;
Takayoshi Takano, Osaka, JP;
Jun Sakai, Osaka, JP;
RIKEN, Saitama, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A UV LED element, which is an exemplary ultraviolet light-emitting diode according to the present invention, includes an n-type conductive layer, a light-emitting layer, an electron block layer, and a p-type contact layer, all of which are arranged in this order. Bandgap energy of the electron block layer satisfies E≤E, where Edesignates bandgap energy of the p-type contact layer and Edesignates the bandgap energy of the electron block layer. The electric apparatus includes the UV LED element as a light source for emitting an ultraviolet ray.