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:
Mar. 01, 2016
Filed:
Jul. 09, 2013
Applicant:
Kabushiki Kaisha Riken, Tokyo, JP;
Inventors:
Keita Hirose, Saitama, JP;
Takashi Ono, Saitama, JP;
Assignee:
KABUSHIKI KAISHA RIKEN, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 17/00 (2006.01); H05K 9/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 17/00 (2013.01); H05K 9/0052 (2013.01);
Abstract
An electromagnetic wave absorber contains cement and carbon nanotubes and has an absolute value of a complex relative permittivity in a range of from 2.0 to 10.0 in a frequency range of from 1 to 110 GHz and a minimum value of a dissipation factor of 0.35 or greater in the frequency range of from 1 to 110 GHz.