JPH0356296U - - Google Patents
Info
- Publication number
- JPH0356296U JPH0356296U JP11715189U JP11715189U JPH0356296U JP H0356296 U JPH0356296 U JP H0356296U JP 11715189 U JP11715189 U JP 11715189U JP 11715189 U JP11715189 U JP 11715189U JP H0356296 U JPH0356296 U JP H0356296U
- Authority
- JP
- Japan
- Prior art keywords
- conductor patterns
- piezoelectric
- recess
- air chamber
- insulating layer
- 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
- 239000004020 conductor Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims 4
- 238000009423 ventilation Methods 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989117151U JPH0728799Y2 (ja) | 1989-10-06 | 1989-10-06 | 圧電形電気音響変換器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989117151U JPH0728799Y2 (ja) | 1989-10-06 | 1989-10-06 | 圧電形電気音響変換器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0356296U true JPH0356296U (US07202987-20070410-C00007.png) | 1991-05-30 |
| JPH0728799Y2 JPH0728799Y2 (ja) | 1995-06-28 |
Family
ID=31665391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989117151U Expired - Fee Related JPH0728799Y2 (ja) | 1989-10-06 | 1989-10-06 | 圧電形電気音響変換器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728799Y2 (US07202987-20070410-C00007.png) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4723153U (US07202987-20070410-C00007.png) * | 1971-04-09 | 1972-11-15 | ||
| JPS6267724U (US07202987-20070410-C00007.png) * | 1985-10-18 | 1987-04-27 | ||
| JPS6449610A (en) * | 1987-08-20 | 1989-02-27 | Nitto Kogyo Kk | Manufacture of roll mold |
-
1989
- 1989-10-06 JP JP1989117151U patent/JPH0728799Y2/ja not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4723153U (US07202987-20070410-C00007.png) * | 1971-04-09 | 1972-11-15 | ||
| JPS6267724U (US07202987-20070410-C00007.png) * | 1985-10-18 | 1987-04-27 | ||
| JPS6449610A (en) * | 1987-08-20 | 1989-02-27 | Nitto Kogyo Kk | Manufacture of roll mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0728799Y2 (ja) | 1995-06-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |