| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 13 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Television | |
| #2 | Cameras | |
| #3 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Negishi Shigeto | 6 |
| #2 | Kohri Naomichi | 6 |
| #3 | Tomaru Takashi | 5 |
| #4 | Harasawa Daisuke | 3 |
| #5 | Yamashita Tsuneo | 3 |
| #6 | Saitoh Shigeki | 2 |
| Publication | Filing date | Title |
|---|---|---|
| KR20100013273A | The method to attach the optical filter to the shoulder of the diaphragm device |