Showing 1–24 of 24 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshito Saji | Sumitomo Electric Industries | 4 |
| 2 | Noriyasu Echigo | Sumitomo Electric Industries | 3 |
| 2 | Fumio Oi | Sumitomo Chemical | 3 |
| 2 | Makoto Isono | The Procter & Gamble | 3 |
| #5 | Mayu Ishigami | The Procter & Gamble | 1 |
| #5 | Seigou Sakagami | Sumitomo Rubber Industries | 1 |
| #5 | Mikio Kabaki | Shionogi & Co. | 1 |
| #5 | Rinta Ibuki | Fujisawa Pharmaceutical Co. | 1 |
| #5 | Yasunori Yoshimura | Honda Motor Co. | 1 |
| #5 | Kazumi Seki | Nippon Steel | 1 |
| #5 | Daikichiro Isogai | — | 1 |
| #5 | Yukitoshi Sakai | The Procter & Gamble | 1 |
| #5 | Junzo Matsumoto | Santen Pharmaceutical Co. | 1 |
| #5 | Maya Hasegawa | — | 1 |
| #5 | Shigeo Ohno | — | 1 |
| #5 | Kazumasa Iwamoto | Idec Izumi | 1 |
| #5 | Chieko Soh | The Procter & Gamble | 1 |
| #5 | Nobuo Hashimoto | Nikon | 1 |
| #5 | Itsuo Okumoto | Ono Pharmaceutical Co. | 1 |
| #5 | Koji Higashikawa | Yaskawa Electric | 1 |
| #5 | Shizuka Furukawa | The Procter & Gamble | 1 |
| #5 | Masatsugu Uehara | Nippon Steel | 1 |
| #5 | Jiro Toyoda | — | 1 |
| #5 | Yoshiaki Azuma | Teijin Limited | 1 |