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. 17, 2025
Filed:
Sep. 09, 2022
Tatsuta Electric Wire & Cable Co., Ltd., Higashiosaka, JP;
Takahiko Katsuki, Kizugawa, JP;
Hiroshi Tajima, Kizugawa, JP;
Sougo Ishioka, Kizugawa, JP;
Kenji Kamino, Kizugawa, JP;
TATSUTA ELECTRIC WIRE & CABLE CO., LTD., Higashiosaka, JP;
Abstract
An electromagnetic wave shielding film with high bending resistance and high electromagnetic wave-shielding characteristics, even when used with high-frequency signal transmission, is disclosed. The electromagnetic wave shielding film includes an adhesive layer; a shielding layer placed on the adhesive layer; and an insulating layer placed on the shielding layer, wherein a plurality of openings having an opening area of 1 to 5000 μmare formed in the shielding layer, the openings include first openings having opening areas of more than 1 μmand 300 μmor less and second openings having opening areas of more than 300 μmand 5000 μmor less, and the percentage of the number (cumulative frequency) of the first openings among the openings is 30 to 90%, and the percentage of the number (cumulative frequency) of the second openings among the openings is 10 to 70%.