| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Australia | 2 | |
| #3 | Brazil | 2 | |
| #4 | Canada | 2 | |
| #5 | United States | 2 | |
| #6 | Spain | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Japan | 1 | |
| #9 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Machines | |
| #3 | Optics | |
| #4 | Measurement | |
| #5 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Television | |
| #5 | Optical systems | |
| #6 | Diagnosis and surgery | |
| #7 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Takahashi Yasunori | 13 |
| #2 | Moshii Ierushiyarumii | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0301504A2 | Method of copy protecting a pre-recorded videotape |