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. 12, 2012
Filed:
Jan. 18, 2008
Applicants:
Kazuyoshi Goan, Kanagawa, JP;
Kazuya Tsukada, Kanagawa, JP;
Naoko Furusawa, Tokyo, JP;
Inventors:
Assignee:
Konica Minolta Medical & Graphic, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/06 (2006.01); H01B 1/02 (2006.01); C09K 11/02 (2006.01); H01L 29/06 (2006.01); H01L 33/00 (2010.01); B32B 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are core/shell type semiconductor nanoparticles exhibiting a sufficient emission intensity without causing a blink phenomenon (blinking). The core/shell-type semiconductor nanoparticles have an average particle size of from 2 to 50 nm and comprise an intermediate layer between a core portion and a shell portion, wherein band gap widths of bulk crystals which have the same compositions as those of the core portion, the intermediate portion and the shell portion, respectively, are in the order of: