Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takuya OZAKI | Nippon Piston Ring Co. | 2 |
| 2 | Hirofumi Oikawa | Ohtake Root Kogyo Co. | 1 |
| 2 | Tsugikatsu Odashima | — | 1 |
4 patents · 3 inventors
Ranked #16,661 of 44,107 cities Top 40%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takuya OZAKI | Nippon Piston Ring Co. | 2 |
| 2 | Hirofumi Oikawa | Ohtake Root Kogyo Co. | 1 |
| 2 | Tsugikatsu Odashima | — | 1 |