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.

Date of Patent:
Jul. 21, 2026

Filed:

Dec. 11, 2023
Applicant:

Mitsubishi Chemical Corporation, Tokyo, JP;

Inventors:

Kazuki Tsujikawa, Tokyo, JP;

Takeshi Ishikawa, Tokyo, JP;

Jun Matsui, Tokyo, JP;

Masashi Ikeda, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 9/14 (2006.01); B29B 17/04 (2006.01); B29K 105/12 (2006.01); B29K 105/26 (2006.01); B29K 307/04 (2006.01);
U.S. Cl.
CPC ...
B29B 9/14 (2013.01); B29B 2017/0496 (2013.01); B29K 2105/12 (2013.01); B29K 2105/26 (2013.01); B29K 2307/04 (2013.01); B29K 2995/0063 (2013.01);
Abstract

A method for producing a fiber assembly, including: putting a plurality of fibers and a fiber treatment agent into a stirring tank; and stirring a mixture of the fibers and the fiber treatment agent with a stirring blade to granulate the mixture, wherein the fibers include carbon fibers, and the mixture is granulated such that the fibers are aligned. A method for producing a fiber assembly, wherein a plurality of fibers containing carbon fibers and a liquid are put into a stirring tank and the mixture of the fibers and the liquid is stirred with a stirring blade, thereby obtaining a fiber assembly which has a spheroidal shape or a strand shape.


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