申请人 |
MITSUBISHI PETROCHEMICAL CO., LTD., TOKIO/TOKYO |
发明人 |
IWANE, HIROSHI, MITSUBISHI PETROCHEM. CO. LTD., INASHIKI-GUN, IBARAKI;SUGAWARA, TAKAHIRO, MITSUBISHI PETROCHEM. CO.LTD., INASHIKI-GUN, IBARAKI;KANEKO, KIMIKO, MITSUBISHI PETROCHEM. CO. LTD., INASHIKI-GUN, IBARAKI |