Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ken Kimura | NS Sumikin Stainless | 4 |
| 2 | Hiromasa Nomura | Nippon Steel | 2 |
| 2 | Shinji Kiyono | Mitsui Chemicals | 2 |
| #4 | Masamitsu Wakoh | Nippon Steel | 1 |
| #4 | Yuuji Nakashima | Nippon Steel | 1 |
| #4 | Koji Hirashima | Nippon Steel Chemical Co. | 1 |
| #4 | Masayuki Tendo | Nippon Steel | 1 |
| #4 | Akira Tsuyuki | Kabushiki Kaisha Toshiba | 1 |
| #4 | Akihito Kiyose | Nippon Steel | 1 |
| #4 | Michihiro Sawada | Idemitsu Kosan Co. | 1 |
| #4 | Ikuo Ochiai | Nippon Steel | 1 |
| #4 | Yujiro Miyauchi | Nippon Steel | 1 |