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, 1998
Filed:
Jul. 11, 1995
Applicant:
Inventors:
Koji Nakamura, Amagasaki, JP;
Hideki Komori, Takatsuki, JP;
Mitsuyuki Oda, Kyoto, JP;
Kazunori Kanda, Yao, JP;
Assignee:
Nippon Paint Co., Ltd., Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428328 ; 428329 ; 428330 ; 428331 ; 428332 ; 428900 ;
Abstract
The present invention provides a thin wide bandwidth electromagnetic wave absorbing material capable of absorbing electromagnetic waves in both the semi-microwave band and the semi-millimeter and millimeter wave band. The present electromagnetic wave absorbing material comprises: a first layer composed of a conductive material; a second layer comprising a particle of a metal oxide magnetic material and a matrix of a binder, being applied on the first layer; and a third layer comprising a particle of a metal magnetic material and a matrix of a binder, being applied on the second layer.