JPH04493Y2 - - Google Patents
Info
- Publication number
- JPH04493Y2 JPH04493Y2 JP1987131457U JP13145787U JPH04493Y2 JP H04493 Y2 JPH04493 Y2 JP H04493Y2 JP 1987131457 U JP1987131457 U JP 1987131457U JP 13145787 U JP13145787 U JP 13145787U JP H04493 Y2 JPH04493 Y2 JP H04493Y2
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- row
- column
- contacts
- key switch
- 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.)
- Expired
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000011889 copper foil Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
Landscapes
- Contacts (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987131457U JPH04493Y2 (fr) | 1987-08-31 | 1987-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987131457U JPH04493Y2 (fr) | 1987-08-31 | 1987-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6436932U JPS6436932U (fr) | 1989-03-06 |
| JPH04493Y2 true JPH04493Y2 (fr) | 1992-01-09 |
Family
ID=31387544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987131457U Expired JPH04493Y2 (fr) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04493Y2 (fr) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57199922U (fr) * | 1981-06-15 | 1982-12-18 |
-
1987
- 1987-08-31 JP JP1987131457U patent/JPH04493Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6436932U (fr) | 1989-03-06 |
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