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:
Dec. 07, 2010
Filed:
Sep. 20, 2006
Koji Shibata, Ube, JP;
Takeshi Kita, Ube, JP;
Koji Shiba, Ichihara, JP;
Takashi Kino, Utsunomiya, JP;
Hideo Sano, Ube, JP;
Yoichi Okubo, Ichihara, JP;
Shigeru Yao, Ichihara, JP;
Koji Shibata, Ube, JP;
Takeshi Kita, Ube, JP;
Koji Shiba, Ichihara, JP;
Takashi Kino, Utsunomiya, JP;
Hideo Sano, Ube, JP;
Yoichi Okubo, Ichihara, JP;
Shigeru Yao, Ichihara, JP;
Ube Industries, Ltd., , JP;
Abstract
Silicon carbide-based fine particles containing an electrically conducting inorganic substance and a electromagnetic wave absorbing material, which are fine particles comprising a particle inner portion of a silicon carbide-based material and a surface layer formed of an electrically conducting inorganic substance mainly comprising carbon, wherein a gradient layer with the compositional ratio of the electrically conducting inorganic substance gradiently increasing toward the particle surface is present and the thickness of the electrically conducting inorganic substance gradient layer is from 1 to 500 nm. The electromagnetic wave absorbing material of the present invention can selectively absorb a electromagnetic wave of 1 to 300 GHz in a wide band.