Showing 1–15 of 15 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ken Yoshioka | Hitachi | 6 |
| 2 | Yoshifumi Ogawa | Hitachi | 5 |
| 3 | Ikuo Yoshida | Hitachi | 3 |
| #4 | Saburo Kanai | Hitachi | 2 |
| #4 | Saburou Kanai | Hitachi | 2 |
| #4 | Takeshi Ikemoto | Kanebo, Limited | 2 |
| #4 | Shoji Ikuhara | Hitachi | 2 |
| #8 | Yutaka Ohmoto | Hitachi | 1 |
| #8 | Junichi Hamada | NS Sumikin Stainless | 1 |
| #8 | Kenichi Kuwabara | Fujitsu Limited | 1 |
| #8 | Yutaka Omoto | Hitachi | 1 |
| #8 | Tadashi Komori | Nippon Steel | 1 |
| #8 | Susumu Otsuka | Mitsubishi Gas Chemical Company | 1 |
| #8 | Takao Niinobe | Sachem | 1 |
| #8 | Hikaru Sakamoto | Furukawa Denchi Kabushiki Kaisha | 1 |