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. 27, 2023
Filed:
Oct. 11, 2018
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Ken Mukai, Osaka, JP;
Shuhei Ikenaga, Osaka, JP;
Kinji Asaka, Osaka, JP;
Toru Morita, Tokyo, JP;
Yujin Motoyama, Tokyo, JP;
Yuta Saito, Tokyo, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Abstract
The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 μm-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.