| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Switzerland | 4 | |
| #3 | Germany | 4 | |
| #4 | United Kingdom | 4 | |
| #5 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pigments | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Niwa Toshio | 16 |
| #2 | Himeno Kiyoshi | 16 |
| #3 | Maeda Shuichi | 10 |
| #4 | Shimizu Yukiharu | 7 |
| #5 | Yoshihara Junji | 6 |
| #6 | Shintani Toshio | 3 |
| #7 | Narita Yoshihiro | 3 |
| #8 | Kajikawa Akira | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US4494957A | Dye compositions for polyester fibers |