Showing 1–11 of 11 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Isao Yamatsu | Eisai | 2 |
| 2 | Norio Nakazawa | Mitsubishi Jidosha Kogya Kabashiki Kaisha | 1 |
| 2 | Masaharu Sibata | Mitsubishi Mining & Cement Co. | 1 |
| 2 | Tadao Ikeda | Dainichiseika Color & Chemicals Mfg. Co. | 1 |
| 2 | Yasutaka Onodera | Mitsubishi Mining & Cement Co. | 1 |
| 2 | Teruo Suzuka | Nippon Mining Company Limited | 1 |
| 2 | Shinjiro Yamaguchi | Riken | 1 |
| 2 | Hiroyoshi Endo | Clarion Co. | 1 |
| 2 | Kimichika Yamada | Clarion Co. | 1 |
| 2 | Yoshiji Nii | Toshiba | 1 |
| 2 | Tsutomu Okuyama | Kaneka | 1 |