Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Isao Sumida | Hitachi | 2 |
| 1 | Iwao Takase | Hitachi | 2 |
| 1 | Takao Kawanami | Nippon Steel | 2 |
| #4 | Shinpei Matsuda | Hitachi | 1 |
| #4 | Kousei Nagayama | Hitachi | 1 |
| #4 | Mikio Yoda | Hitachi | 1 |
9 patents · 6 inventors
Ranked #3,884 of 20,767 cities Top 20%
Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Isao Sumida | Hitachi | 2 |
| 1 | Iwao Takase | Hitachi | 2 |
| 1 | Takao Kawanami | Nippon Steel | 2 |
| #4 | Shinpei Matsuda | Hitachi | 1 |
| #4 | Kousei Nagayama | Hitachi | 1 |
| #4 | Mikio Yoda | Hitachi | 1 |