申请人 |
JAPAN SEWAGE WORKS AGENCY, TOKIO/TOKYO;KURITA WATER INDUSTRIES, LTD., TOKIO/TOKYO |
发明人 |
TANIGUCHI, NAOHIRO, YOKOHAMA-SHI, KANAGAWA 221;KOIKE, SYUZO, URAWA-SHI, SAITAMA 336;WATANABE, YASUHIKO, KURITA WATER INDUSTRIES LTD., TOKYO 160;TAKEUCHI, TADAO, KURITA WATER INDUSTRIES LTD., TOKYO 160;FUJIWARA, NOBORU, KURITA WATER INDUSTRIES LTD, TOKYO 160 |