Top Inventors at Daicel-Evonik All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Mitsuteru Mutsuda | 22 |
| 2 | Hiroaki Arita | 9 |
| 3 | Hajime Komada | 7 |
| #4 | Yoshiki Nakaie | 7 |
| #5 | Toru Ikuta | 6 |
| #6 | Toshihiko Fujinaka | 5 |
| #7 | Hirofumi Iguchi | 3 |
| #8 | Naoki Wakita | 3 |
| #9 | Tatsuki Akashi | 3 |
| #10 | Takayuki UNO | 3 |
| #11 | Toshiaki Nakamura | 2 |
| #12 | Daisuke Fujiki | 1 |
| #13 | Haruhisa Masuda | 1 |
| #14 | Hideki Matsui | 1 |
| #15 | Hitomi Omae | 1 |
| #16 | Kimihiko Oya | 1 |
| #17 | Masaru Kitada | 1 |
| #18 | Masakazu Tokunaga | 1 |
| #19 | Mutsuo Tezuka | 1 |
| #20 | Nao Sato | 1 |
| #21 | Ryo Nakahama | 1 |
| #22 | Taiji Yamabe | 1 |
| #23 | Thomas Grosse-Puppendahal | 1 |
| #24 | Tomohiro Kawahara | 1 |
| #25 | Yasufumi Nakajima | 1 |
| #26 | Yuki Adachi | 1 |
| #27 | Arimichi Okumura | 1 |