Showing 1–18 of 18 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shinji Takeuchi | Daiwa Seiko Co. | 4 |
| 2 | Kazuyuki Kitamura | Hoechst Japan Limited | 3 |
| 3 | Shigeru Tokai | Komatsu Shisakusho | 2 |
| 3 | Hideki Chatani | Komatsu Seiren Co. | 2 |
| 3 | Yoshiaki Hino | Honda Giken Koygo | 2 |
| #6 | Kiyokazu Baba | Komatsu Shisakusho | 1 |
| #6 | Munehide Yamaguchi | Mitsubishi Mining | 1 |
| #6 | Kazuhiko Shiroza | Komatsu | 1 |
| #6 | Shigeki Iwasaki | Komatsu | 1 |
| #6 | Masaharu Kon | Komatsu Shisakusho | 1 |
| #6 | Kazuo Kodama | Seiko Epson | 1 |
| #6 | Masashi Mukai | Komatsu Seiren Co. | 1 |
| #6 | Masumi Shimomura | Komatsu Machinery Corporation | 1 |
| #6 | Mamoru Mohri | Nikko Co. | 1 |
| #6 | Ikuo Takashima | Hokuriku Seikei Industrial Co. | 1 |
| #6 | Hirohide Sato | Nippondenso Co. | 1 |
| #6 | Chisato Furukawa | Kabushiki Kaisha Toshiba | 1 |
| #6 | Ikuo Kamada | Komatsu | 1 |