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:
Jul. 20, 2021
Filed:
Sep. 28, 2016
Applicant:
Teijin Limited, Osaka, JP;
Inventors:
Assignee:
TEIJIN LIMITED, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01F 9/145 (2006.01); D06M 11/34 (2006.01); H01M 4/133 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
D01F 9/145 (2013.01); D06M 11/34 (2013.01); H01M 4/133 (2013.01); H01M 4/625 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); Y02E 60/10 (2013.01);
Abstract
The present invention provides pitch-based ultrafine carbon fibers that have an average fiber diameter of at least 100 nm and less than 700 nm, and an average fiber length of 10 μm or more, wherein C—O bonds >C═O bonds in terms of the abundance ratio (molar ratio) of C—O bonds and C═O bonds derived from the O1s orbital as measured by X-ray photoelectron spectroscopy.