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. 06, 1995
Filed:
Aug. 13, 1993
Applicant:
Inventors:
Takamasa Shintani, Yamatokooriyama, JP;
Masatake Nakamura, Tokyo, JP;
Assignee:
Sekisui Chemical Co. Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4283202 ; 428297 ; 428688 ; 428 76 ; 1741 / ; 1741 / ; 1741 / ;
Abstract
An electromagnetic wave shielding building material is disclosed, the building material comprising an electrically conductive concrete which has electromagnetic wave shielding properties and comprises a hydraulic inorganic material and carbon fibers of 0.6-3% by weight. It is possible to easily produce the building material having good electromagnetic wave shielding functions at low cost.