Top Inventors at Chiyoda 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Akifumi Toki | 1 |
| 2 | Chikako Hashimoto | 1 |
| 3 | Hideaki Hotta | 1 |
| #4 | Hironobu Marukawa | 1 |
| #5 | Hiroaki Suzuki | 1 |
| #6 | Hiroaki Tanaka | 1 |
| #7 | Kazuya Kumagai | 1 |
| #8 | Koji Inaka | 1 |
| #9 | Motohiro Asano | 1 |
| #10 | Naoki TANIGAWA | 1 |
| #11 | Ryuichi Kanai | 1 |
| #12 | Sachiko Takahashi | 1 |
| #13 | Seiichi Tsuzuki | 1 |
| #14 | Takeshi Ikeda | 1 |
| #15 | Takashi Morimoto | 1 |
| #16 | Teruo Hioki | 1 |
| #17 | Tetsuro Matsumura | 1 |
| #18 | Yoichi Umehara | 1 |
| #19 | Zhixiong You | 1 |