Showing 1–11 of 11 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shunsuke Yamanaka | Zeon | 6 |
| 2 | Hiroshi Sumiya | Brother Kogyo | 3 |
| 3 | Tadahiro Kondo | Aida Engineering | 2 |
| #4 | Masahiro Sutou | Toagosei Co. | 1 |
| #4 | Masaru Ando | Kabushiki Kaisha Toshiba | 1 |
| #4 | Junya Komano | Showa Denko Packaging Co. | 1 |
| #4 | Eitora Yamamura | Kyowa Hakko Bio Co. | 1 |
| #4 | Hiroyuki Nobezawa | Hitachi Construction Machinery Tierra Co. | 1 |
| #4 | Shiro Tsubokura | Nippon Soda Co. | 1 |
| #4 | Shinichi HIKIDA | Chuetsu Pulp & Paper Co. | 1 |
| #4 | Kazuya Hirota | Rinnai | 1 |