申请人 |
TOSHIBA CORP;NIPPON TELEGR & TELEPH CORP <NTT>;IWATSU ELECTRIC CO LTD;KANDA TSUSHIN KOGYO CO LTD;MEISEI ELECTRIC CO LTD |
发明人 |
TANAKA MASANORI;IZUKA KAZUHIRO;MASUOKA KENZO;SHIMIZU MAKOTO;NAKAMURA KIMITOSHI;MORIKAMI EIJI;MITSUTAKE YUICHIRO;IMAHORI TETSUYA;MORI YASUSHI;ARAI TAKAHISA;SAITO MASAKUNI |