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. 23, 2026
Filed:
Oct. 11, 2022
Sumitomo Electric Industries, Ltd., Osaka, JP;
Yutaka Fukuda, Osaka, JP;
Tatsuo Matsuda, Kanuma, JP;
Chiaki Kojima, Kanuma, JP;
Shoei Yonezawa, Kanuma, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Tokyo, JP;
Abstract
A resin sheet for a flexible flat cable is layered between a plurality of conductors arranged in parallel and a shield layer layered on the outer surface side of the plane in which the plurality of conductors are arranged in parallel, and has one or more insulating layers. The resin sheet for a flexible flat cable has a base insulating layer that has a tensile elastic modulus of 40-450 MPa, a dielectric loss tangent of at most 0.0014, and a relative permittivity of at most 2.3 at 25° C. and 10 GHZ, and that contains an olefin-based thermoplastic elastomer as the main component thereof. The average thickness of the base insulating layer is 20-450 μm.