Top Inventors at Royal Industries Co. All Time
Showing 1–6 of 6 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Fuji Koike | 2 |
| 1 | Huji Koike | 2 |
| 1 | Makoto Koike | 2 |
| 1 | Namiko Ishii | 2 |
| #5 | Yoshiyuki Hayashi | 1 |
| #5 | Richard S. Grear | 1 |
Showing 1–6 of 6 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Fuji Koike | 2 |
| 1 | Huji Koike | 2 |
| 1 | Makoto Koike | 2 |
| 1 | Namiko Ishii | 2 |
| #5 | Yoshiyuki Hayashi | 1 |
| #5 | Richard S. Grear | 1 |