Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yasutaka Tsuruga | Hitachi Construction Machinery Co. | 3 |
| 2 | Hiroyuki Ebinuma | Sekisui Medical Co. | 2 |
| 2 | Genroku Sugiyama | Hitachi Construction Machinery Co. | 2 |
| 2 | Yasunori Miyamoto | Hitachi Construction Machinery Co. | 2 |
| 2 | Fumihiko Matsuda | Nippon Mektron | 2 |
| #6 | Kazuo Ishida | Mitsubishi Electric | 1 |
| #6 | Masami Yoshida | Smc | 1 |
| #6 | Takashi Sugata | Tcm | 1 |
| #6 | Takayuki Ban | Toyota | 1 |
| #6 | Katsuyuki Kirita | Hitachi Construction Machinery Co. | 1 |
| #6 | Mitsuaki Yamamoto | Sekisui Medical Co. | 1 |
| #6 | Tomonori Aoki | Bridgestone | 1 |
| #6 | Junichi Kondou | Sekisui Medical Co. | 1 |