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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 12767534 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Aug. 18, 2021

Spherical aln particles and method of production of same, and composite material containing same

Applicant:

Nippon Steel Chemical & Material Co., Ltd., Tokyo, JP;

Inventors:

Kazuhiko Kusunoki, Tokyo, JP;

Kenya Sato, Tokyo, JP;

Hiroto Unno, Tokyo, JP;

Ryutaro Numao, Tokyo, JP;

Assignee:

NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Anthony J Zimmer

Int. Cl.
CPC ...
C01B 21/072 (2006.01); C08K 3/28 (2006.01);
U.S. Cl.
CPC ...
C01B 21/0726 (2013.01); C08K 3/28 (2013.01); C01P 2004/32 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C08K 2003/282 (2013.01); C08K 2201/005 (2013.01);
Abstract

Aluminum nitride particles which are excellent in high thermal conductivity and useful as a filler for a heat dissipating material and which have good fluidity for improving the fillability, that is, spherical AlN particles containing Zr atoms with respect to Al atoms in an amount of a molar ratio Zr/Al=4.0×10to 4.2×10, having an AlN conversion rate of 70.0% or more, and having a circularity of 0.85 to 1.00.

Find Patent Forward Citations

Kusunoki, Kazuhiko. (2026). Spherical aln particles and method of production of same, and composite material containing same (U.S. Patent No. 12767534). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12767534

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

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