(19)
(11) EP 0 900 458 A1

(12)

(43) Date of publication:
10.03.1999 Bulletin 1999/10

(21) Application number: 98901750.0

(22) Date of filing: 12.01.1998
(51) International Patent Classification (IPC): 
E04B 1/ 92( . )
H05K 9/ 00( . )
 H01Q 17/ 00( . )
(86) International application number:
PCT/US1998/000406
(87) International publication number:
WO 1998/031072 (16.07.1998 Gazette 1998/28)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 13.01.1997 US 19970782934
13.01.1997 US 19970782938

(71) Applicants:
  • SYMETRIX CORPORATION
    Colorado Springs, CO 80918 (US)
  • Fujita Corporation
    Tokyo 151 (JP)

(72) Inventors:
  • JOSHI, Vikram
    Colorado Springs, CO 80919 (US)
  • KIMURA, Kenichi
    Los Angeles, CA 90049 (US)
  • PAZ DE ARAUJO, Carlos, A.
    Colorado Springs, CO 80919 (US)
  • KIYOKAWA, Hiroshi
    Yokohama City, Kanagawa 241 (JP)

(74) Representative: Schoppe, Fritz, Dipl.-Ing. 
Schoppe & Zimmermann Patentanwälte Postfach 71 08 67
81458 München
81458 München (DE)

   


(54) ELECTROMAGNETIC WAVE ABSORPTION PANELS AND MATERIALS FOR SAME