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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.:

US 12503795 B1

PDFFull Text
Date of Patent:
Dec. 23, 2025

Filed:

Oct. 14, 2022

Carbon fiber precursor fiber, fiber for carbon fiber precursor fiber, method of producing carbon fiber precursor fiber, method of producing stabilized fiber, and method of producing carbon fiber

Applicants:

Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Mamiko Narita, Nagakute, JP;

Mitsumasa Matsushita, Nagakute, JP;

Takuya Morishita, Nagakute, JP;

Natsu Sakakura, Nagakute, JP;

Akira Kunitomo, Toyota, JP;

Nozomu Shigemitsu, Toyota, JP;

Assignees:

KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, Nagakute, JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Daniel C Mccracken

Int. Cl.
CPC ...
D01F 9/21 (2006.01); C01B 32/05 (2017.01); D01F 6/28 (2006.01); D06M 15/643 (2006.01); D06M 101/26 (2006.01);
U.S. Cl.
CPC ...
D01F 9/21 (2013.01); C01B 32/05 (2017.08); D01F 6/28 (2013.01); D06M 15/6433 (2013.01); D06M 2101/26 (2013.01);
Abstract

The carbon fiber precursor fiber of the disclosure includes an acrylamide-based polymer fiber; and a self-crosslinked product of a self-crosslinking silicone oil on a surface of the acrylamide-based polymer fiber.

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Narita, Mamiko. (2025). Carbon fiber precursor fiber, fiber for carbon fiber precursor fiber, method of producing carbon fiber precursor fiber, method of producing stabilized fiber, and method of producing carbon fiber (U.S. Patent No. 12503795). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12503795

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