申请人 |
MITSUBISHI PETROCHEMICAL CO., LTD.;MITSUBISHI YUKA PHARMACEUTICAL CO., LTD. |
发明人 |
TODA, HIDEO C/O CENTRAL RESEARCH LABORATORIES;KIHARA, KUNIO C/O CENTRAL RESEARCH LABORATORIES;MIZOGAMI, SUSUMU RES. LAB. MITSUBISHI YUKA;HASHIMOTO, MUNEHIRO RES. LAB. MITSUBISHI YUKA |