Top Inventors at Daisan Kasei Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Maruyama | 3 |
| 2 | Takashi Inoue | 3 |
| 3 | Tsutomu Mochizuki | 3 |
| #4 | Teruo Fujii | 2 |
| #5 | Hisao Kimoto | 1 |
| #6 | Hiroshi Kimura | 1 |
| #7 | Hirosuke Naruto | 1 |
| #8 | Hitomi Sakai | 1 |
| #9 | Hideto Tozawa | 1 |
| #10 | Kentaro Kamimae | 1 |
| #11 | Makoto Hirama | 1 |
| #12 | Masaki Nishikawa | 1 |
| #13 | Shin Ohya | 1 |
| #14 | Taku Oguni | 1 |
| #15 | Taichi Shimada | 1 |
| #16 | Takatoki Yamamoto | 1 |
| #17 | Tetsuya Isaka | 1 |
| #18 | Yasuyuki Sakai | 1 |
| #19 | Yasuo Urata | 1 |
| #20 | Yasuo Yoshimoto | 1 |
| #21 | Yuki Tanabe | 1 |