Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Tsukimitsu Higuchi | Daido Metal Company | 2 |
| 2 | Susumu Tuzi | Daido Metal Company | 1 |
| 2 | Masumu Satoh | Ckd | 1 |
| 2 | Noboru Kurita | Kayaba Kogyo | 1 |
| 2 | Shusaburo Hokukoku | Kyowa Hakko Kogyo Co. | 1 |
| 2 | Fumitoshi Terasaki | Okuma | 1 |
| 2 | Masakatsu Yamauchi | Tomei Sangyo Kabushiki Kaisha | 1 |