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:
Jan. 03, 2023
Filed:
Jun. 12, 2018
Nitto Denko Corporation, Ibaraki, JP;
Takehiro Ui, Osaka, JP;
Hiroichi Ukei, Osaka, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
An electromagnetic wave absorber includes an electromagnetic wave-absorbing layer () and an adhesive layer (). The adhesive layer () is disposed on at least one surface of the electromagnetic wave-absorbing layer (). The electromagnetic wave absorber is capable of being adhered to a surface having a step in such a manner that the adhesive layer () is in contact with the surface. The adhesive layer () has a thickness equal to or greater than a reference height determined by subtracting 0.1 mm from the height of the step. In the electromagnetic wave absorber, a return loss ΔR defined by ΔR=Rt−Rr is 15 dB or more. Rt is a reflection amount of a 76-GHz electromagnetic wave and is measured for a reference specimen. Rr is a reflection amount of a 76-GHz electromagnetic wave and is measured for a specimen obtained by adhering the electromagnetic wave absorber.