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:
Jun. 23, 2009
Filed:
Sep. 09, 2008
Applicants:
Kazushige Yamamoto, Yokohama, JP;
Tatsuo Shimizu, Tokyo, JP;
Shigeru Haneda, Yokohama, JP;
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/15 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light emitting device includes an active layer including atoms A of a matrix semiconductor having a tetrahedral structure, a heteroatom D substituted for the atom A in a lattice site, and a heteroatom Z inserted into an interstitial site positioned closest to the heteroatom D, the heteroatom D having a valence electron number differing by +1 or −1 from that of the atom A, and the heteroatom Z having an electron configuration of a closed shell structure through charge compensation with the heteroatom D, and an n-electrode and a p-electrode adapted to supply a current to the active layer.