发明授权
EP0844212B1 Silica gel, synthetic quartz glass powder and shaped product of quartz glass
失效
硅胶,合成石英玻璃粉末和石英玻璃制成的模制体
- 专利标题: Silica gel, synthetic quartz glass powder and shaped product of quartz glass
- 专利标题(中): 硅胶,合成石英玻璃粉末和石英玻璃制成的模制体
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申请号: EP97120208.0申请日: 1997-11-18
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公开(公告)号: EP0844212B1公开(公告)日: 2002-04-24
- 发明人: Utsunomiya, Akira, Mitsubishi Chem. Corp. , Katsuro, Yoshio, Mitsubishi Chem. Corp. , Takazawa, Akihiro, Mitsubishi Chem. Corp. , Moriyama, Takashi, Mitsubishi Chem. Corp.
- 申请人: MITSUBISHI CHEMICAL CORPORATION
- 申请人地址: 5-2 Marunouchi 2-chome Chiyoda-ku, Tokyo 100-0005 JP
- 专利权人: MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人: MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人地址: 5-2 Marunouchi 2-chome Chiyoda-ku, Tokyo 100-0005 JP
- 代理机构: TER MEER STEINMEISTER & PARTNER GbR
- 优先权: JP30917796 19961120; JP33820396 19961218
- 主分类号: C01B33/18
- IPC分类号: C01B33/18
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