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. 20, 2023
Filed:
Aug. 13, 2018
Applicant:
Ube Exsymo Co., Ltd., Tokyo, JP;
Inventors:
Hidenori Miyoshi, Tokyo, JP;
Kenta Gotou, Tokyo, JP;
Assignee:
UBE EXSYMO CO., LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/18 (2006.01);
U.S. Cl.
CPC ...
C01B 33/182 (2013.01); C01B 33/183 (2013.01); C01P 2006/80 (2013.01);
Abstract
Disclosed is a black powder comprising silica particles that contain carbon. Each of the silica particles is single-layered. The content of carbon contained in the surfaces of the silica particles measured by an X-ray photoelectron spectroscopy is 1% by mass or less.