| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Republic of Korea | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | Brazil | 1 | |
| #7 | China | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Mexico | 1 | |
| #10 | Singapore | 1 | |
| #11 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Macromolecular chemistry and polymers | |
| #3 | Medical technology | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Special macromolecular compounds | |
| #3 | Spectacles | |
| #4 | Unspecified technologies | |
| #5 | Special macromolecular compounds | |
| #6 | Object sterilising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Iwata Junichi | 13 |
| #2 | Ikawa Seiichirou | 12 |
| #3 | Hoki Tsuneo | 12 |
| #4 | Back Arthur | 5 |
| #5 | Ikawa Seiichiro | 2 |
| #6 | Seiichirou Ikawa | 2 |
| #7 | Tsuneo Hoki | 2 |
| #8 | Junichi Iwata | 2 |
| #9 | Osawa Nobuyuki | 1 |
| #10 | Ueyama Hiroyuki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0884058A1 | Solution for preserving and sterilizing contact lenses |