| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 21 | |
| #2 | China | 20 | |
| #3 | United States | 19 | |
| #4 | Republic of Korea | 16 | |
| #5 | WIPO (World Intellectual Property Organization) | 12 | |
| #6 | Taiwan | 4 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machines | |
| #3 | Chemical engineering | |
| #4 | Environmental technology | |
| #5 | Audio-visual technology | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Producing goods from plastic | |
| #3 | Water treatment | |
| #4 | Separation | |
| #5 | Nails | |
| #6 | Television |
| # | Name | Total Patents |
|---|---|---|
| #1 | Do Satoshi | 63 |
| #2 | Satoshi Do | 15 |
| #3 | Yoshida Toshiyuki | 6 |
| #4 | Dou Satoshi | 5 |
| #5 | Nishino Tamio | 4 |
| #6 | Akira Do | 3 |
| #7 | Onuma Isao | 3 |
| #8 | Hashimoto Yoshiyuki | 3 |
| #9 | Isao Onuma | 1 |
| #10 | Tamio Nishino | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR20090012301A | Imaging lens | |
| EP2120078A1 | Imaging lens | |
| CN1412592A | Imaging lens | |
| EP1302801A1 | Two-lens imaging system | |
| US2001055164A1 | Image pickup lens unit | |
| US2002001144A1 | Image pickup lens unit |