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:
Sep. 15, 2009
Filed:
Oct. 15, 2004
Jong-hwa Kwon, Daejon, KR;
Hyung-do Choi, Seoul, KR;
Ho-gyu Yoon, Seoul, KR;
Yoon-jin Kim, Busan, KR;
Jong-Hwa Kwon, Daejon, KR;
Hyung-Do Choi, Seoul, KR;
Ho-Gyu Yoon, Seoul, KR;
Yoon-Jin Kim, Busan, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed is an electromagnetic shielding material with enhanced shielding effectiveness and mechanical property by employing a carbon nanotube and a metal as an electrical conductor. The electromagnetic shielding material includes a polymer resin for a matrix and two conductive fillers having a carbon nanotube and a metal, wherein a volume percent of the carbon nanotube ranges about 0.2% to about 10% and a volume percent of the metal powder ranges about 7.0% to about 30% so that the total volume percent of the conductive filler is in a range of about 7.2% to about 40%.