申请人 |
MITSUBISHI PETROCHEMICAL CO., LTD.;MITSUBISHI KASEI CORP., TOKIO/TOKYO, JP |
发明人 |
TODA, HIDEO C/O CENTRAL RESEARCH LABORATO;KIHARA, KUNIO C/O CENTRAL RESEARCH LABORATO;MIZOGAMI, SUSUMU RES. LAB. MITSUBISHI YUKA;HASHIMOTO, MUNEHIRO RES. LAB. MITSUBISHI YUKA, AMI-MACHI INASHIKI-GUN IBARAKI-KEN, JP |