Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kouichi Yamazaki | Hitachi | 3 |
| 2 | Michiaki Takahashi | — | 1 |
| 2 | Kouji Tanabe | Sumitomo Electric Industries | 1 |
| 2 | Nobuo Kakehi | Nippon Steel | 1 |
| 2 | Sigeyuki Nitta | Eddio | 1 |
| 2 | Yoshikazu Izumihara | Nippon Steel | 1 |
| 2 | Yoshiro Koyasu | Nippon Steel | 1 |