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. 09, 2026
Filed:
Aug. 26, 2022
Mitsubishi Materials Electronic Chemicals Co., Ltd., Akita, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Kensuke Kageyama, Akita, JP;
Takuya Shiyama, Akita, JP;
Naoyuki Aiba, Akita, JP;
Riho Taguchi, Akita, JP;
Hiroto Akaike, Naka, JP;
Norihisa Chitose, Naka, JP;
Mitsubishi Materials Electronic Chemicals Co., Ltd., Akita, JP;
MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;
Abstract
This aluminum-oxide-based-composition-containing zirconium nitride powder contains particles each of which is mainly composed of zirconium nitride and has a surface to which an aluminum oxide-based composition partially adheres, in which the aluminum-oxide-based-composition-containing zirconium nitride powder contains aluminum in a proportion of greater than 1% by mass and 15% by mass or less in terms of a total content of 100% by mass, and has a specific surface area of 30 m/g to 90 m/g measured by a BET method. This powder has relatively high light shielding properties in a near infrared region with a wavelength of 1,000 nm, has excellent patterning and visible light shielding properties, and has favorable moisture resistance, when the powder is used to form a black patterned film as a black pigment.