Showing 1–23 of 23 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hironori Nomura | Unicharm | 30 |
| 2 | Yasunori Shimada | Sharp Kabushiki Kaisha | 27 |
| 3 | Michiyo Matsushita | Unicharm | 11 |
| #4 | Junji Shinohara | Unicharm | 7 |
| #5 | Keiji Torigoshi | Daio Paper | 6 |
| #6 | Tomoka Kamoto | Daio Paper | 2 |
| #6 | Toshiaki Kawanabe | Daio Paper | 2 |
| #6 | Tsuneo Aoki | Unknown | 2 |
| #6 | Yoshiro Yamawaki | Hitachi Zosen | 2 |
| #6 | Michiko Matsushita | Unicharm | 2 |
| #6 | Hideki Saiga | Daio Paper | 2 |
| #6 | Noboru Ishizu | — | 2 |
| #13 | You Kataoka | — | 1 |
| #13 | Shingoro Matsuura | — | 1 |
| #13 | Koichi Inoshita | Showa Highpolymer Co. | 1 |
| #13 | Haruo Hattori | Showa Highpolymer Co. | 1 |
| #13 | Buji Hamaie | Rohm Co. | 1 |
| #13 | Shozo Yoshida | Showa Highpolymer Co. | 1 |
| #13 | Kazushi Kaji | — | 1 |
| #13 | Hiroshige Teraji | Daio Paper | 1 |
| #13 | Motokazu Aono | Daio Paper | 1 |
| #13 | Terumasa Yamasaki | Asahi Kasei Kogyo Co. | 1 |
| #13 | Takenaru Mukai | Daio Paper | 1 |