Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ken Yoshioka | Hitachi | 10 |
| 2 | Ikuo Yoshida | Hitachi | 6 |
| 2 | Shoji Ikuhara | Hitachi | 6 |
| #4 | Saburou Kanai | Hitachi | 5 |
| #5 | Junichi Hamada | NS Sumikin Stainless | 4 |
| #6 | Takeshi Ikemoto | Kanebo, Limited | 2 |
| #6 | Kazunori Ishisaka | Siltronic Ag | 2 |
| #6 | Yutaka Ohmoto | Hitachi | 2 |
| #6 | Saburo Kanai | Hitachi | 2 |
| #10 | Takayoshi Matsui | Nippon Steel | 1 |
| #10 | Ryouji Hamasaki | Hitachi | 1 |
| #10 | Ryuji Nakao | Nippon Steel | 1 |
| #10 | Yoshifumi Ogawa | Hitachi | 1 |