Top Inventors at Ryowa All Time
Showing 1–14 of 14 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Masao Terai | 2 |
| 2 | Akio Okamoto | 1 |
| 2 | Hideo Fujimori | 1 |
| 2 | Hiroshi Hayashi | 1 |
| 2 | Kazuo Aoyama | 1 |
| 2 | Kiyoshi Hattori | 1 |
| 2 | Kiyoshi Takahashi | 1 |
| 2 | Shin Miyazawa | 1 |
| 2 | Takashi Sasaki | 1 |
| 2 | Yoshitaka Nishimoto | 1 |
| 2 | Yukitaka Murata | 1 |
| 2 | Hiroshi Imaura | 1 |
| 2 | Shigeko Hanari | 1 |
| 2 | Yuichi Morihira | 1 |