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. 08, 2005
Filed:
Oct. 02, 2002
Applicants:
Andrew James Shields, Cambridge, GB;
Richard Mark Stevenson, Cambridge, GB;
Beata Ewa Kardynal, Cambridge, GB;
Zhiliang Yuan, Cambridge, GB;
Inventors:
Andrew James Shields, Cambridge, GB;
Richard Mark Stevenson, Cambridge, GB;
Beata Ewa Kardynal, Cambridge, GB;
Zhiliang Yuan, Cambridge, GB;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L033/00 ;
U.S. Cl.
CPC ...
Abstract
A photon source includes a photon source body including quantum dots, a non-insulating layer overlying and in contact with the quantum dots, and an electrical contact that allows electrically activated emission of radiation from at least one of the quantum dots. An active region is defined within the photon source body such that emission is only collected from a dot or a limited number of dots within the active region.