Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shinichi Sakamoto | Fujikura | 2 |
| 2 | Hikaru Yagi | Mitsui Engineering & Shipbuilding Co. | 1 |
| 2 | Hozumi Ueda | Sumida | 1 |
| 2 | Hiroshi Kawasaki | Dai Nippon Printing Co. | 1 |
5 patents · 4 inventors
Ranked #3,857 of 15,417 cities Top 30%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shinichi Sakamoto | Fujikura | 2 |
| 2 | Hikaru Yagi | Mitsui Engineering & Shipbuilding Co. | 1 |
| 2 | Hozumi Ueda | Sumida | 1 |
| 2 | Hiroshi Kawasaki | Dai Nippon Printing Co. | 1 |