Joetsu, JP ranks #4,521 worldwide for total patents filed in 2021, with 24 patents from 4 inventors. Leading employers of inventors based in Joetsu, JP include Shin-Etsu Chemical Co..
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Masaki Ohashi | Shin-Etsu Chemical Co. | 8 |
| 2 | Osamu Watanabe | Shin-Etsu Chemical Co. | 7 |
| 3 | Akira Kitamura | Shin-Etsu Chemical Co. | 6 |
| #4 | Kazuhiro Katayama | Shin-Etsu Chemical Co. | 3 |