| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | EPO (European Patent Office) | 13 | |
| #3 | Taiwan | 9 | |
| #4 | China | 7 | |
| #5 | Singapore | 2 | |
| #6 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Medical technology | |
| #3 | Machine tools | |
| #4 | Electrical machinery and energy | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Okubo Masao | 14 |
| #2 | Machida Kazumichi | 13 |
| #3 | Kimura Teppei | 13 |
| #4 | Okubo Kazumasa | 12 |
| #5 | Urata Atsuo | 12 |
| #6 | Iwata Hiroshi | 10 |
| #7 | Mori Chikaomi | 9 |
| #8 | Mine Atsushi | 8 |
| #9 | Sakata Teruhisa | 7 |
| #10 | Kazumichi Machida | 4 |
| Publication | Filing date | Title |
|---|---|---|
| EP1475861A1 | Apparatus for electrical connection between substrates | |
| EP0740160A1 | Vertically operative probe card assembly | |
| US5134365A | Probe card in which contact pressure and relative position of each probe end are correctly maintained | |
| US5055778A | Probe card in which contact pressure and relative position of each probe end are correctly maintained |