申请人 |
UBE INDUSTRIES, LTD.;KANEGAFUCHI CHEMICAL INDUSTRY CO., LTD.;NIPPON STEEL CORPORATION;TDK CORPORATION;TOSOH CORPORATION;TOYO BOSEKI KABUSHIKI KAISHA TRADING UNDER THE NAME OF TOYOBO CO., LTD.;NIPPON MINING COMPANY LIMITED;NEC CORPORATION;MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;SEISAN KAIHATSU KAGAKU KENKYUSHO |
发明人 |
TAKADA, TOSHIO;TERASHIMA, TAKAHITO;IIJIMA, KENJI;YAMAMOTO, KAZUNUKI;HIRATA, KAZUTO DAIICHIMEZON NAKAJIMA 406-GO;BANDO, YOSHICHIKA |