(19)
(11) EP 1 331 909 A2

(12)

(88) Date of publication A3:
23.01.2003

(43) Date of publication:
06.08.2003 Bulletin 2003/32

(21) Application number: 01989925.1

(22) Date of filing: 08.11.2001
(51) International Patent Classification (IPC)7: A61F 9/06, F16P 1/06
(86) International application number:
PCT/US0146/495
(87) International publication number:
WO 0203/8095 (16.05.2002 Gazette 2002/20)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 09.11.2000 JP 2000342324

(71) Applicant: 3M Innovative Properties Company
Saint Paul, MN 55133-3427 (US)

(72) Inventors:
  • MIYASHITA, Kiyoshi
    Hino-shi, Tokyo 191-0055 (JP)
  • SUYAMA, Shunsuke
    Yokohama, Kanagawa 225-0024 (JP)

(74) Representative: VOSSIUS & PARTNER 
Siebertstrasse 4
81675 München
81675 München (DE)

   


(54) A WELDING OPERATION LIQUID CRYSTAL PROTECTION MASK