Patents per Year
Top Inventors at Koyo Engineering Co. All Time
Showing 1–11 of 11 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Futami | 3 |
| 1 | Kenjiro Futami | 3 |
| 3 | Katsuhisa Kashiwazaki | 2 |
| 3 | Shuichi Saitoh | 2 |
| #5 | Akira Fujishima | 1 |
| #5 | Hirotaka Yamashiro | 1 |
| #5 | Kazutoshi Kaibara | 1 |
| #5 | Katsumi Yamashita | 1 |
| #5 | Tetsu Tatsuma | 1 |
| #5 | Yasuhisa Maeda | 1 |
| #5 | Yoshihisa Ohko | 1 |