Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toshiyoshi Kikuhara | Clarion Co. | 3 |
| 2 | Toshikazu Narahara | Hitachi | 2 |
| 3 | Mitsuji Miyoshi | Nippon Oil | 1 |
| 3 | Hisao Sonobe | Hitachi | 1 |
7 patents · 4 inventors
Ranked #3,004 of 15,417 cities Top 20%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toshiyoshi Kikuhara | Clarion Co. | 3 |
| 2 | Toshikazu Narahara | Hitachi | 2 |
| 3 | Mitsuji Miyoshi | Nippon Oil | 1 |
| 3 | Hisao Sonobe | Hitachi | 1 |