Top Inventors at Toyopolymer Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hitomi Ninomiya | 5 |
| 2 | Chihiro Tani | 2 |
| 3 | Michiro Goto | 2 |
| #4 | Yoshio Midorikawa | 2 |
| #5 | Chie Ipponsugi | 1 |
| #6 | Hidehei Kageyama | 1 |
| #7 | Kazuo Takemoto | 1 |
| #8 | Kenji Shimizu | 1 |
| #9 | Kouichi Yoshida | 1 |
| #10 | Misa Kiyoshi | 1 |
| #11 | Naohito Higuchi | 1 |
| #12 | Natsuko Yukitake | 1 |
| #13 | Noriyasu Kaneda | 1 |
| #14 | Norio Kawai | 1 |
| #15 | Nozomi Kobayashi | 1 |
| #16 | Nobuyuki Ooshima | 1 |
| #17 | Shin-ichi Haba | 1 |
| #18 | Tomoya Genmoto | 1 |
| #19 | Yoshio Seki | 1 |