Top Inventors at Johnan Manufacturing 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Hideo KASHIWABARA | 3 |
| 2 | Hiroki Shimizu | 3 |
| 3 | Yukihide Yamazaki | 3 |
| #4 | Hideaki Kashiwagi | 2 |
| #5 | Hideaki Takehara | 2 |
| #6 | Wataru Murata | 2 |
| #7 | Koji Sasaki | 1 |
| #8 | Takeshi Nishizawa | 1 |
| #9 | Yuta SAKURAI | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Hideo KASHIWABARA | 3 |
| 2 | Hiroki Shimizu | 3 |
| 3 | Yukihide Yamazaki | 3 |
| #4 | Hideaki Kashiwagi | 2 |
| #5 | Hideaki Takehara | 2 |
| #6 | Wataru Murata | 2 |
| #7 | Koji Sasaki | 1 |
| #8 | Takeshi Nishizawa | 1 |
| #9 | Yuta SAKURAI | 1 |