Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroaki Ishizuka | Ricoh Company | 35 |
| 2 | Akio Sakamoto | Jx Nippon Oil & Energy | 13 |
| 3 | Ken Kajikawa | — | 3 |
Part of California
51 patents · 3 inventors
Ranked #23,913 of 111,555 cities Top 25%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroaki Ishizuka | Ricoh Company | 35 |
| 2 | Akio Sakamoto | Jx Nippon Oil & Energy | 13 |
| 3 | Ken Kajikawa | — | 3 |
Part of California