JPH03116488U - - Google Patents
Info
- Publication number
- JPH03116488U JPH03116488U JP2344090U JP2344090U JPH03116488U JP H03116488 U JPH03116488 U JP H03116488U JP 2344090 U JP2344090 U JP 2344090U JP 2344090 U JP2344090 U JP 2344090U JP H03116488 U JPH03116488 U JP H03116488U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- metal oxide
- oxide semiconductor
- resistance value
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims 4
- 150000004706 metal oxides Chemical class 0.000 claims 4
- 239000004065 semiconductor Substances 0.000 claims 4
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990023440U JP2547855Y2 (ja) | 1990-03-08 | 1990-03-08 | ガス検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990023440U JP2547855Y2 (ja) | 1990-03-08 | 1990-03-08 | ガス検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03116488U true JPH03116488U (fr) | 1991-12-03 |
| JP2547855Y2 JP2547855Y2 (ja) | 1997-09-17 |
Family
ID=31526425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990023440U Expired - Lifetime JP2547855Y2 (ja) | 1990-03-08 | 1990-03-08 | ガス検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2547855Y2 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6140937A (ja) * | 1984-07-31 | 1986-02-27 | 末松 大吉 | 暗渠用ブロツクの施工方法 |
-
1990
- 1990-03-08 JP JP1990023440U patent/JP2547855Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6140937A (ja) * | 1984-07-31 | 1986-02-27 | 末松 大吉 | 暗渠用ブロツクの施工方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2547855Y2 (ja) | 1997-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |