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. 07, 2020
Filed:
Sep. 26, 2017
Electromagnetic wave absorbing body and method for manufacturing electromagnetic wave absorbing body
Daido Steel Co., Ltd., Nagoya-shi, JP;
Akihiko Saito, Nagoya, JP;
Yu Nakama, Nagoya, JP;
Mikiko Tsutsui, Nagoya, JP;
Tadashi Hattori, Nagoya, JP;
DAIDO STEEL CO., LTD., Nagoya-shi, Aichi, JP;
Abstract
The present invention relates to an electromagnetic wave absorbing body which is a sheet-like electromagnetic wave absorbing body in which particles including a soft magnetic material are dispersed in a matrix including a non-metal material, in which the electromagnetic wave absorbing body satisfies a relationship: α≥⅕, in which α is a parameter given by Equation (1): α=Ad(εμ)/(μ″+ε″μ/ε), in which d is a thickness of the electromagnetic wave absorbing body, ε, ε″, μ, and μ″ are a permittivity of the electromagnetic wave absorbing body, a loss term of ε, a permeability of the electromagnetic wave absorbing body, and a loss term of μ, respectively, and A is equal to 8×10/π(Ω/m).