Top Inventors at Toyochem Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Tsutomu Hayasaka | 5 |
| 2 | Hidenobu Kobayashi | 3 |
| 3 | Kazunori MATSUDO | 3 |
| #4 | Shota Mori | 3 |
| #5 | Tetsuya Natsumoto | 3 |
| #6 | Daisuke Kishi | 2 |
| #7 | Hiroyuki Hayashi | 2 |
| #8 | Kaori Sakaguchi | 2 |
| #9 | Kenji Ando | 2 |
| #10 | Kenji Andou | 2 |
| #11 | Naohiro Tanaka | 2 |
| #12 | Takahiro Matsuzawa | 2 |
| #13 | Toru Oya | 2 |
| #14 | Toshiichi Sawaguchi | 2 |
| #15 | Yoshitaka Tone | 2 |
| #16 | Atsushi Nakazato | 1 |
| #17 | Chiyo Ishizu | 1 |
| #18 | Katsunori Fukuta | 1 |
| #19 | Kenichi Hara | 1 |
| #20 | Kensuke Inuzuka | 1 |
| #21 | Masayuki Horiguchi | 1 |
| #22 | Naoki Takeuchi | 1 |
| #23 | Ryota Umezawa | 1 |
| #24 | Satoshi Nishinohara | 1 |
| #25 | Satoko Niwa | 1 |
| #26 | Shuhei SAITO | 1 |
| #27 | Shingo Tanabe | 1 |
| #28 | Tadashi Abe | 1 |
| #29 | Takayasu Ikeda | 1 |
| #30 | Takafumi Senaga | 1 |
| #31 | Tadashi Someda | 1 |
| #32 | Tetsuya Kaneko | 1 |
| #33 | Toshio Iwasawa | 1 |
| #34 | Yoshiyuki Murata | 1 |
| #35 | Yoshihiro Sato | 1 |
| #36 | Yutaro Kato | 1 |
| #37 | Yuki Sato | 1 |