Top Inventors at Daicel Polymer All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masahiko Itakura | 6 |
| 2 | Daiji IKEDA | 3 |
| 3 | Hiroshi Katayama | 3 |
| #4 | Shinichiro Imanishi | 3 |
| #5 | Toshio Oguni | 3 |
| #6 | Toshihiro Tai | 3 |
| #7 | Yasuo Okumura | 3 |
| #8 | Yoshihiro Asami | 3 |
| #9 | Hirotomo Katano | 2 |
| #10 | Hiroshi Sagane | 2 |
| #11 | Kazunobu Yanai | 2 |
| #12 | Masahiro Katayama | 2 |
| #13 | Naoki Wakita | 2 |
| #14 | Takafumi Ueda | 2 |
| #15 | Takayuki UNO | 2 |
| #16 | Hideaki Sakamoto | 1 |
| #17 | Hiromoto Sasaki | 1 |
| #18 | Ippei Tonosaki | 1 |
| #19 | Kenji Yao | 1 |
| #20 | Koji Nishikawa | 1 |
| #21 | Masayuki Okoshi | 1 |
| #22 | Osamu Jigami | 1 |
| #23 | Satoru Shibata | 1 |
| #24 | Shigeyuki Kosaka | 1 |
| #25 | Shigeyuki Kousaka | 1 |
| #26 | Tatsuo Izumitani | 1 |
| #27 | Takayuki Ogihara | 1 |
| #28 | Takehiko Shima | 1 |
| #29 | Toru Nakano | 1 |
| #30 | Weihong Gu | 1 |
| #31 | Yuichi Oe | 1 |