Top Inventors at Ryukakusan Co. All Time
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Atsuko Fukui | 8 |
| 2 | Masanori Nakajima | 2 |
| 2 | Mika Ohta | 2 |
| 2 | Takashi Kamijima | 2 |
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Atsuko Fukui | 8 |
| 2 | Masanori Nakajima | 2 |
| 2 | Mika Ohta | 2 |
| 2 | Takashi Kamijima | 2 |