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. 13, 2024
Filed:
Aug. 06, 2019
Crystalline silicon carbide fiber and method for manufacturing same, and ceramic composite substrate
Applicant:
Ube Corporation, Ube, JP;
Inventors:
Yuusuke Tominaga, Ube, JP;
Hiroyuki Yamaoka, Ube, JP;
Kouichirou Suyama, Ube, JP;
Hideki Ozawa, Ube, JP;
Mao Sumino, Ube, JP;
Assignee:
UBE CORPORATION, Yamaguchi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/622 (2006.01); C04B 35/64 (2006.01); C04B 35/80 (2006.01); D01D 5/08 (2006.01); D01F 9/10 (2006.01);
U.S. Cl.
CPC ...
C04B 35/62281 (2013.01); C04B 35/64 (2013.01); C04B 35/80 (2013.01); D01D 5/08 (2013.01); D01F 9/10 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/656 (2013.01); C04B 2235/658 (2013.01); C04B 2235/661 (2013.01); C04B 2235/75 (2013.01);
Abstract
A crystalline silicon carbide fiber containing silicon carbide and boron nitride, the crystalline silicon carbide fiber having a content of Si of 64% to 72% by weight, a content of C of 28% to 35% by weight, and a content of B of 0.1% to 3.0% by weight, and including, at a surface portion, a composition gradient layer in which a content of silicon carbide increases while a content of boron nitride decreases toward a depth direction.