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Extract from the Register of European Patents

EP Citations: EP1243077

Cited inInternational search
Type:Patent literature
Publication No.:US5168508  [X]
 (IWASAKI KENJU [JP], et al) [X] 1,7 * abstract * * column 3, line 26 - column 5, line 56 *;
Type:Patent literature
Publication No.:EP0704986  [X]
 (AT & T CORP [US]) [X] 1,5,7,22 * the whole document *;
Type:Patent literature
Publication No.:EP0812069  [A]
 (SHARP KK [JP]) [A] 1,7 * abstract ** column 9, line 2 - column 11, line 18 *