申请人 |
MITSUBISHI MATERIALS CORP., TOKIO/TOKYO, JP |
发明人 |
KANEKO, KOICHI, AKITA-SHI AKITA-KEN, JP;ABE, KIYOTAKA, KAGAWA-GUN KAGAWA-KEN, JP;KIMURA, TAKEO, AKITA-SHI AKITA-KEN, JP;ICHINOSEKI, FUSAO, HOYA-SHI TOKYO, JP;OHKODA, MITSURU, AKITA-SHI AKITA-KEN, JP |