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:
Apr. 28, 2026
Filed:
Apr. 09, 2021
Furukawa Electric Co., Ltd., Tokyo, JP;
Hidekazu Hara, Tokyo, JP;
Jirou Hiroishi, Tokyo, JP;
Jae Kyung Kim, Tokyo, JP;
Masami Tazuke, Tokyo, JP;
Toshihiro Suzuki, Tokyo, JP;
Masato Ikeuchi, Tokyo, JP;
Jiro Sakato, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A cellulose fiber-dispersing resin composite material, containing a cellulose fiber dispersed in a resin, in which a content of the cellulose fiber is 1% by mass or more and less than 70% by mass, and LL and LN satisfy the following [Expression 1], when a length weighted average fiber length of the cellulose fiber is taken as LL, and a number average fiber length of the cellulose fiber is taken as LN measured under the following measurement condition; LL and LN are determined for a dissolution residue obtained by immersing the cellulose fiber-dispersing resin composite material in a solvent capable of dissolving the resin in the composite material, in accordance with Pulps-Determination of fiber length by automated optical analysis specified by ISO 16065 2001.1.1<()<1.5 [Expression 1]