Showing 1–16 of 16 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kunio Hata | Jujo Paper Co. | 4 |
| 2 | Toyoo Morita | Yoshida Kogyo K.K. | 3 |
| 3 | Tomoaki Kasai | Yoshida Kogyo K.K. | 2 |
| 3 | Masahiro Kusayama | Ykk | 2 |
| 3 | Muneyoshi Hirano | Yoshida Kogyo K.K. | 2 |
| 3 | Toyosaku Ogura | Ykk | 2 |
| #7 | Keiichi Yoshieda | Yoshida Kogyo K.K. | 1 |
| #7 | Hidehiro Kitayama | — | 1 |
| #7 | Shunji Akashi | Yoshida Kogyo K.K. | 1 |
| #7 | Tomiyoshi Takano | Yoshida Kogyo K.K. | 1 |
| #7 | Yoshinori Fujisaki | Yoshida Kogyo K.K. | 1 |
| #7 | Masami Takemura | Yoshida Kogyo K.K. | 1 |
| #7 | Mitsutoshi Ishihara | Ykk | 1 |
| #7 | Yoichi Horikawa | Yoshida Kogyo K.K. | 1 |
| #7 | Masaatsu Ohfusa | Yoshida Kogyo K.K. | 1 |
| #7 | Jukichi Fukushima | Yoshida Kogyo K.K. | 1 |