Top Inventors at Yamashin-Filter 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Nobuyuki Kitajima | 2 |
| 2 | Akihiro Saito | 1 |
| 3 | Hiroshi Makino | 1 |
| #4 | Mitsuhiro Yamaguchi | 1 |
| #5 | Nobuki Sasaki | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Nobuyuki Kitajima | 2 |
| 2 | Akihiro Saito | 1 |
| 3 | Hiroshi Makino | 1 |
| #4 | Mitsuhiro Yamaguchi | 1 |
| #5 | Nobuki Sasaki | 1 |