Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Mikio Yoda | Hitachi | 18 |
| 2 | Moriaki Tsukamoto | Hitachi | 17 |
| 3 | Takao Kawanami | Nippon Steel | 14 |
| #4 | Iwao Takase | Hitachi | 10 |
| #4 | Hiromi Tokoi | Hitachi | 10 |
| #6 | Isao Sumida | Hitachi | 9 |
| #7 | Kousei Nagayama | Hitachi | 8 |
| #7 | Takashi Haramaki | Hitachi | 8 |
| #9 | Sai Ogawa | Hitachi | 6 |
| #10 | Kiyoharu Yamada | Mitsubishi Jidosha Engineering | 4 |
| #11 | Yoji Koike | Pentax | 2 |
| #11 | Tamotu Uejima | Mitsui Toatsu Chemicals, Incorporated | 2 |
| #11 | Madis Kerner | Jot Automation Oy | 2 |
| #14 | Youkou Wakui | Hitachi | 1 |
| #14 | Osamu Michikami | Nippon Telegraph And Telephone Public | 1 |
| #14 | Kazuo Seo | Hitachi | 1 |
| #14 | Valter-Johannes Sirge | — | 1 |
| #14 | Emiko Minowa | Hitachi | 1 |
| #14 | Susumu Sugikawa | Japan Atomic Energy Research Institute | 1 |
| #14 | Ahti Parijogi | Unknown | 1 |
| #14 | Shinpei Matsuda | Hitachi | 1 |