申请人 |
SAGAMI CHEMICAL RESEARCH CENTER, TOKIO/TOKYO, JP;CENTRAL GLASS CO., LTD., YAMAGUCHI, JP;HODOGAYA CHEMICAL CO., LTD., TOKIO/TOKYO, JP;NIPPON SODA CO. LTD., TOKIO/TOKYO, JP;NISSAN CHEMICAL INDUSTRIES, LTD., TOKIO/TOKYO, JP;TOSOH CORP., SHINNANYO, YAMAGUCHI, JP |
发明人 |
KOBAYASHI, YOICHI, ODAWARA-SHI KANAGAWA 250-02, JP;OMORI, MUNEKI, TOSHIMA-KU TOKYO 171, JP;YAMADA, CHIKAKO, EBINA-SHI KANAGAWA 243-04, JP |