Top Inventors at Richell U.S.A. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Satoshi Hirokawa | 8 |
| 2 | Orie Tani | 6 |
| 3 | Kiyoshi Miyamoto | 2 |
| #4 | Hidenori Okura | 1 |
| #5 | Naoki Shimoda | 1 |
| #6 | Noriaki Murai | 1 |
| #7 | Ryosuke Fujii | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Satoshi Hirokawa | 8 |
| 2 | Orie Tani | 6 |
| 3 | Kiyoshi Miyamoto | 2 |
| #4 | Hidenori Okura | 1 |
| #5 | Naoki Shimoda | 1 |
| #6 | Noriaki Murai | 1 |
| #7 | Ryosuke Fujii | 1 |