申请人 |
NIPPON SODA CO. LTD., TOKIO/TOKYO, JP |
发明人 |
ASAI, MAKOTO R&D LAB. FOR SPECIALTY CHEMICALS, ICHIHARA-SHI CHIBA 290, JP;SUZUKI, HIROSHI R&D LAB. FOR SPECIALTY CHEMICALS, ICHIHARA-SHI CHIBA 290, JP;ICHIKAWA, TAKAKO R&D LAB. FOR SPECIALTY CHEMICALS, ICHIHARA-SHI CHIBA 290, JP |