Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroshi Ishii | Ricoh Company | 12 |
| 2 | Ryo Shimizu | Sumitomo Osaka Cement Co. | 2 |
Part of Massachusetts
14 patents · 2 inventors
Ranked #7,894 of 44,107 cities Top 20%
Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroshi Ishii | Ricoh Company | 12 |
| 2 | Ryo Shimizu | Sumitomo Osaka Cement Co. | 2 |
Part of Massachusetts