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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.:

US 12359123 B1

PDFFull Text
Date of Patent:
Jul. 15, 2025

Filed:

Jun. 05, 2020

Semiconductor nanoparticle complex, semiconductor nanoparticle complex dispersion liquid, semiconductor nanoparticle complex composition, semiconductor nanoparticle complex cured film, and purification method for semiconductor nanoparticle complex

Applicant:

Shoei Chemical Inc., Tokyo, JP;

Inventors:

Makoto Kido, Tosu, JP;

Takafumi Moriyama, Tosu, JP;

Hirokazu Sasaki, Tosu, JP;

Assignee:

SHOEI CHEMICAL INC., Tokyo, JP;

Attorney:

Alleman Hall & Tuttle LLP

Primary Examiner:

C Melissa Koslow

Int. Cl.
CPC ...
C09K 11/70 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C01G 9/00 (2006.01); C01G 15/00 (2006.01); C09K 11/02 (2006.01); C09K 11/88 (2006.01);
U.S. Cl.
CPC ...
C09K 11/70 (2013.01); C01G 9/00 (2013.01); C01G 15/00 (2013.01); C09K 11/02 (2013.01); C09K 11/703 (2013.01); C09K 11/883 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2004/64 (2013.01); C01P 2004/80 (2013.01); C01P 2006/60 (2013.01);
Abstract

Provided is a semiconductor nanoparticle complex in which a ligand is coordinated to a surface of a semiconductor nanoparticle. The semiconductor nanoparticle includes In and P, the ligand includes a mercapto fatty acid ester represented by the following general formula, and the mercapto fatty acid ester has an SP value of 9.30 or less. General formula: HS-R-COOR(where Ris a Chydrocarbon group and Ris a Chydrocarbon group). The present invention can provide a semiconductor nanoparticle complex that keeps high fluorescence quantum yield before and after purification.

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Kido, Makoto. (2025). Semiconductor nanoparticle complex, semiconductor nanoparticle complex dispersion liquid, semiconductor nanoparticle complex composition, semiconductor nanoparticle complex cured film, and purification method for semiconductor nanoparticle complex (U.S. Patent No. 12359123). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12359123

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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