发明授权
- 专利标题: Gas detector
- 专利标题(中): 气体探测器
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申请号: US489179申请日: 1983-04-27
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公开(公告)号: US4481499A公开(公告)日: 1984-11-06
- 发明人: Hideo Arima , Masayoshi Kaneyasu , Mitsuko Ito
- 申请人: Hideo Arima , Masayoshi Kaneyasu , Mitsuko Ito
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX57-75096 19820507
- 主分类号: G01N27/12
- IPC分类号: G01N27/12 ; G01N27/04 ; H01L7/00
摘要:
A gas detector with a layer of gas sensing material comprising an oxide semiconductor, wherein at least one coating layer each of a p-type oxide semiconductor and an n-type oxide semiconductor is provided in a multi-layer arrangement on the surface of said layer of gas sensing material that contacts the gas. The gas detector can selectively identify only specific gases.
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