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, 2013
Filed:
May. 20, 2013
Furukawa Electric Co., Ltd., Tokyo, JP;
Yasumasa Kawakita, Tokyo, JP;
Takeo Kageyama, Tokyo, JP;
Hitoshi Shimizu, Tokyo, JP;
Hirotatsu Ishii, Tokyo, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
Included are: an active layer provided between an upper multilayer film reflecting mirror and a lower multilayer film reflecting mirror formed on a GaAs substrate and formed of a periodic structure of a low-refractive-index layer formed of AlGaAs (0.8≦x≦1) and a high-refractive-index layer formed of AlGaAs (0≦y≦x), at least one of the low-refractive-index layer and the high-refractive-index layer being of n-type; and a lower electrode provided between the lower multilayer film reflecting mirror and the active layer and configured to inject an electric current into the active layer.