Joetsu, JP ranks #4,714 worldwide for total patents filed all time, with 576 patents from 6 inventors. Leading employers of inventors based in Joetsu, JP include Shin-Etsu Chemical Co., Nifco.
Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Osamu Watanabe | Shin-Etsu Chemical Co. | 275 |
| 2 | Masaki Ohashi | Shin-Etsu Chemical Co. | 163 |
| 3 | Kazuhiro Katayama | Shin-Etsu Chemical Co. | 61 |
| #4 | Akira Kitamura | Shin-Etsu Chemical Co. | 44 |
| #5 | Ken Hayashi | Nifco | 24 |
| #6 | Hidekazu KONISHI | Shin-Etsu Chemical Co. | 9 |