Patents per Year
Top Inventors at Naniwa Products Co. All Time
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Kazuo Kawai | 4 |
| 1 | Seiji Katashima | 4 |
| 1 | Sumikazu Kawai | 4 |
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Kazuo Kawai | 4 |
| 1 | Seiji Katashima | 4 |
| 1 | Sumikazu Kawai | 4 |