Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yuko Harasawa | Ricoh Company | 4 |
| 2 | Keizo Ikai | Nippon Oil | 2 |
| 3 | Masahito Hirose | Fuji Oozx | 1 |
7 patents · 3 inventors
Ranked #5,650 of 24,315 cities Top 25%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yuko Harasawa | Ricoh Company | 4 |
| 2 | Keizo Ikai | Nippon Oil | 2 |
| 3 | Masahito Hirose | Fuji Oozx | 1 |