Top Inventors at Gunma Prefecture 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Atsushi Kajihara | 2 |
| 2 | Hiroshi Miyajima | 2 |
| 3 | Masaki Gotoh | 2 |
| #4 | Jun Ozawa | 1 |
| #5 | Naoyuki Utsumi | 1 |
| #6 | Osamu Niijima | 1 |
| #7 | Takashi Suda | 1 |
| #8 | Tomoaki Sakata | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Atsushi Kajihara | 2 |
| 2 | Hiroshi Miyajima | 2 |
| 3 | Masaki Gotoh | 2 |
| #4 | Jun Ozawa | 1 |
| #5 | Naoyuki Utsumi | 1 |
| #6 | Osamu Niijima | 1 |
| #7 | Takashi Suda | 1 |
| #8 | Tomoaki Sakata | 1 |