Top Inventors at Sumida 2020
| Rank | Name | Patents |
|---|---|---|
| 1 | Mitsugu Kawarai | 3 |
| 2 | Shinichi Sakamoto | 3 |
| 3 | Douglas James Malcolm | 2 |
| #4 | Hiroyuki Miyazaki | 2 |
| #5 | Kei Tanaka | 2 |
| #6 | Motomi Takahashi | 2 |
| #7 | Shuichi Kikuchi | 2 |
| #8 | Takanobu Rokuka | 2 |
| #9 | Tsutomu Otsuka | 2 |
| #10 | Akihiko Nakamura | 1 |
| #11 | Daichi GEMBA | 1 |
| #12 | Fumio Uchikoba | 1 |
| #13 | Jiayu Chen | 1 |
| #14 | Junji Morita | 1 |
| #15 | Juichi Oki | 1 |
| #16 | Naoki Sasaki | 1 |
| #17 | Satoru Yamada | 1 |
| #18 | Teruaki Tanaka | 1 |
| #19 | Tomoaki Asari | 1 |
| #20 | Tomohiro KAJIYAMA | 1 |
| #21 | Tomoyuki Kaneko | 1 |