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:
Oct. 14, 2025
Filed:
Jan. 30, 2023
National University Corporation Tokai National Higher Education and Research System, Nagoya, JP;
Tanaka Kikinzoku Kogyo K.k., Tokyo, JP;
Tsukasa Torimoto, Nagoya, JP;
Tatsuya Kameyama, Nagoya, JP;
Mariko Hasegawa, Nagoya, JP;
Chie Miyamae, Nagoya, JP;
Hiroki Sato, Tsukuba, JP;
Yuusuke Ohshima, Tsukuba, JP;
Shojiro Kikuchi, Tsukuba, JP;
Abstract
The present invention relates to a semiconductor nanoparticle composed of a compound containing Ag, Au, S and a metal M as essential constitutional elements. In the present invention, the metal M is at least any of Al, Ga, In, Tl, Zn, Cd, Hg and Cu, and the compound has a total content of Ag, Au, S and the metal M of 95 mass % or more. In addition, a ratio (x/(x+y)) of the number of atoms of Ag to a sum of the number of atoms of Ag, x, and the number of atoms of Au, y, in the AgAuS-based multicomponent compound is preferably 0.50 or more and 0.88 or less. The semiconductor nanoparticle of the present invention has appropriate emission and extinction characteristics and is biocompatible.