Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
電磁波吸収パネル及びその材料
Document Type and Number:
Japanese Patent JP3852619
Kind Code:
B2
Abstract:
An electromagnetic wave absorption panel (100) for use in building construction includes an absorber layer (106) that utilizes novel materials such as layered superlattice materials, garnets, magnetoresistive materials, conducting oxides, such as LSM, magnetoplumbites, signet magnetics, Fe3O4, Ni0.4Zn0.6Fe2O4, and polymer composites of the above materials. The absorber layer is preferably a multi-component structure such as a layer of a ferrite (114) combined with one or more of the above materials. The invention also includes: a multi-component absorber element (106) having an effective real part of the permitivity, ELEMENT 'eff, and an effective real part of the permeability, mu 'eff, such that ( ELEMENT 'eff mu 'eff)<1/2> SIMILAR 1/f over said range of frequencies, where f is the frequency of the incident wave; and a multi-component absorber element (106) having an effective real part of the permitivity, ELEMENT 'eff, that decreases with frequency.

More Like This:
Inventors:
Vikram Yoshi
Kimura Kenichi
Carlos A. Pas de Arrojo
Kiyokawa Hiroshi
Application Number:
JP53112298A
Publication Date:
December 06, 2006
Filing Date:
January 12, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Symmetrics Corporation
Fujita Co., Ltd.
International Classes:
H05K9/00; E04B1/92; H01Q17/00
Domestic Patent References:
JP5291784A
JP4354103A
JP8204379A
JP6224583A
Foreign References:
EP0468887A1
Attorney, Agent or Firm:
Shigeru Noda