Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Seiji Nishino | Sumitomo Electric Industries | 5 |
| 2 | Koichiro Nawa | Yoshida Kogyo K.K. | 2 |
| 2 | Yoshito Ikeguchi | Ykk | 2 |
| 2 | Ryuichi Kitada | Ykk Architectural Products | 2 |
| #5 | Yuichi Nozaki | Nippon Seiki Co. | 1 |
| #5 | Masami Shiratori | Funai Electric Co. | 1 |
| #5 | Hidenobu Nagahama | Ykk | 1 |
| #5 | Sachio Asakura | Toyox Co. | 1 |
| #5 | Youji Matsuo | Yoshida Kogyo K.K. | 1 |
| #5 | Kenichiro Iai | Ykk | 1 |
| #5 | Shunji Akashi | Yoshida Kogyo K.K. | 1 |
| #5 | Ryuji Saiki | Nitto Boseki Co. | 1 |
| #5 | Hidehiro Kitayama | — | 1 |
| #5 | Yuichi Kubo | Hitachi | 1 |
| #5 | Kazuya Nakayama | Nippon Mining Company Limited | 1 |
| #5 | Toyosaku Ogura | Ykk | 1 |
| #5 | Tatsumi Shirodera | Ykk | 1 |