Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Isamu Masuda | Nihonkenkozoshinkenkyukai Co. | 2 |
| 1 | Toshimi Kuma | Seibu Giken Co. | 2 |
| 3 | Atushi Minohara | — | 1 |
| 3 | Motoo Takayanagi | — | 1 |
| 3 | Masatosi Adachi | Mitsui Mining Company, Limited | 1 |
| 3 | Yutaka Iwanaga | Mitsui Mining Company, Limited | 1 |
| 3 | Nobuhide Ikeyama | Mitsui Mining Company, Limited | 1 |
| 3 | Yuji Torikai | Mitsubishi Electric | 1 |
| 3 | Tatsuo Yamamura | Panasonic | 1 |
| 3 | Kan Ikeda | Mitsui Chemicals | 1 |
| 3 | Ryuzo Minakami | Nippon Paper Industries Co. | 1 |
| 3 | Chiyuki Kikuchi | Mitsui Toatsu Chemicals, Incorporated | 1 |
| 3 | Hiroshi Suzunaga | Kabushiki Kaisha Toshiba | 1 |
| 3 | Yoshiyasu Sumiyoshi | — | 1 |
| 3 | Shinichi Umeda | Mitsui Toatsu Chemicals, Incorporated | 1 |
| 3 | Jin-ichi Inokuchi | Seikagaku | 1 |
| 3 | Kunitaka Mizobe | — | 1 |