Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hirotoshi Ishii | Idemitsu Kosan Co. | 3 |
| 2 | Hiroaki Kubota | Kabushiki Kaisha Toshiba | 2 |
| 3 | Satoko Fujiyama | Mitsui Chemicals | 1 |
| 3 | Tetsutaro Sato | — | 1 |
| 3 | Noriyuki Satou | Sumitomo Chemical | 1 |
| 3 | Kenji Takuma | Nippon Steel | 1 |
| 3 | Sachiko Isobe | Kazusa Dna Research Institute | 1 |