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:
Aug. 27, 1985
Filed:
Mar. 25, 1983
Kenichi Hatakeyama, Tokyo, JP;
Tetsuji Inui, Tokyo, JP;
Nippon Electric Co., Ltd., Tokyo, JP;
Abstract
An electro-magnetic wave absorbing member comprises a mixture of short fibers of metal or alloy having a high electroconductivity, a length of from 0.1 mm to 50 mm and a length to diameter ratio of larger than 10, ferrite and a high molecular weight synthetic resin. In a modification a sheet of this material is used as a low input impedance layer and laminated with an electroconductive sheet and an impedance conversion layer. The member of this invention can increase electrical loss contributing to the absorption of electric magnetic wave, can stably control the absorption and can be used in many applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile