申请人 |
DENKA SEIKEN CO., LTD.;MATSUI, HIROSHI;MIZUNO, KAZUSHIGE;ITO, YASUKI;OHARA, SHUICHI;FUJIWARA, AKIRA;TAKASUGI, KENICHI;OKADA, MASAHIKO |
发明人 |
MATSUI, HIROSHI;MIZUNO, KAZUSHIGE;ITO, YASUKI;OHARA, SHUICHI;FUJIWARA, AKIRA;TAKASUGI, KENICHI;OKADA, MASAHIKO |