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:
Apr. 13, 2021
Filed:
Mar. 07, 2018
Applicant:
Mitsubishi Materials Electronic Chemicals Co., Ltd., Akita, JP;
Inventors:
Kensuke Kageyama, Akita, JP;
Takashi Konishi, Akita, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 21/076 (2006.01); G02F 1/1335 (2006.01); G03F 7/004 (2006.01);
U.S. Cl.
CPC ...
C01B 21/076 (2013.01); G02F 1/133512 (2013.01); G03F 7/0044 (2013.01); C01P 2004/61 (2013.01); C01P 2006/90 (2013.01);
Abstract
The present invention provides a zirconium nitride powder comprising zirconium, nitrogen, and oxygen as main components, wherein the zirconium concentration is 73 to 82% by mass, the nitrogen concentration is 7 to 12% by mass, and the oxygen concentration is 15% by mass or less; in the transmission spectra of a dispersion having a powder concentration of 50 ppm, a light transmittance X at 370 nm is at least 12% and a light transmittance Y at 550 nm is 12% or less; and the ratio (X/Y) of the light transmittance X at 370 nm to the light transmittance Y at 550 nm is at least 1.4.