Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toru Sakuranaka | Diesel Kiki Co. | 4 |
| 1 | Masami Ohtani | Dainippon Screen Mfg. Co. | 4 |
| 3 | Hitoshi Sugimoto | Canon | 3 |
| #4 | Masao Matsukawa | Sanyo Kokusaku Pulp Co. | 2 |
| #4 | Tsuneyuki Chiyoda | Diesel Kiki Co. | 2 |
| #4 | Minematsu Nagashima | Sanyo Kokusaku Pulp Co. | 2 |
| #4 | Hisashi Mino | Sanyo Kokusaku Pulp Co. | 2 |
| #8 | Yutaka Ishizuka | Diesel Kiki Co. | 1 |
| #8 | Tomonori Ohie | Diesel Kiki Co. | 1 |
| #8 | Takeshi Ohe | Jidosha Kiki Co. | 1 |
| #8 | Hiroshi Hatsuno | Diesel Kiki Co. | 1 |
| #8 | Kohki Iwata | Diesel Kiki Co. | 1 |
| #8 | Ichiro Yanagawa | Jidosha Kiki Co. | 1 |
| #8 | Iwao Ohno | Diesel Kiki Co. | 1 |
| #8 | Nobuhiro Kaibara | Diesel Kiki Co. | 1 |
| #8 | Masao Yoshino | Casio Computer Co. | 1 |
| #8 | Kazuyoshi Takaichi | Diesel Kiki Co. | 1 |
| #8 | Mitsuo Fukushima | Diesel Kiki Co. | 1 |
| #8 | Koji Fukushima | — | 1 |
| #8 | Yoshiharu Tada | Diesel Kiki Co. | 1 |