发明授权
- 专利标题: Process for purifying nitrogen trifluoride gas
- 专利标题(中): 净化三氟化硼气体的工艺
-
申请号: EP89109439.3申请日: 1989-05-24
-
公开(公告)号: EP0344612B1公开(公告)日: 1993-03-17
- 发明人: Koto, Nobuhiko , Nishitsuji, Toshihiko , Iwanaga, Naruyuki , Harada, Isao
- 申请人: MITSUI TOATSU CHEMICALS, Inc.
- 申请人地址: 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 专利权人: MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人: MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人地址: 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 代理机构: Schüler, Horst, Dr.
- 优先权: JP135061/88 19880601
- 主分类号: C01B21/083
- IPC分类号: C01B21/083
公开/授权文献
- EP0344612A3 Process for purifying nitrogen trifluoride gas 公开/授权日:1990-05-30
信息查询