Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akira Yamagiwa | Hitachi | 5 |
| 2 | Shuuji Aisawa | Toho Titanium Co. | 1 |
| 2 | Renpei Hatano | Nippon Soda Co. | 1 |
| 2 | Kiyoshi Katsuura | Nippon Soda Co. | 1 |
8 patents · 4 inventors
Ranked #6,748 of 30,370 cities Top 25%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akira Yamagiwa | Hitachi | 5 |
| 2 | Shuuji Aisawa | Toho Titanium Co. | 1 |
| 2 | Renpei Hatano | Nippon Soda Co. | 1 |
| 2 | Kiyoshi Katsuura | Nippon Soda Co. | 1 |