Top Inventors at Yokoyama Sankoh Co. All Time
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Yoshimasa Yokoyama | 6 |
| 2 | Masahiro Yamamoto | 5 |
| 3 | Yokoyama Yoshimasa | 1 |
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Yoshimasa Yokoyama | 6 |
| 2 | Masahiro Yamamoto | 5 |
| 3 | Yokoyama Yoshimasa | 1 |