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:
Aug. 19, 2025
Filed:
Oct. 30, 2020
Mitsubishi Materials Electronic Chemicals Co., Ltd., Akita, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Kensuke Kageyama, Akita, JP;
Takashi Konishi, Akita, JP;
Tasuku Sugiura, Naka, JP;
Masaya Karube, Naka, JP;
Mitsubishi Materials Electronic Chemicals Co., Ltd., Akita, JP;
MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;
Abstract
A black material of the present invention consists of a zirconium nitride powder containing yttrium. The amount of the yttrium is 1.0% by mass to 12.0% by mass with respect to a total 100% by mass of the zirconium nitride powder and the yttrium. In a transmission spectrum obtained from a dispersion in which the concentration of the zirconium nitride powder containing yttrium is 50 ppm, assuming that the light transmittance at a wavelength of 550 nm is denoted by X, and the light transmittance at a wavelength of 365 nm is denoted by X, Xis 7.5% or less, Xis 25% or more, and X/Xis 3.5 or more.