Top Inventors at Riso Kagaku 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Akiko Hayashi | 5 |
| 2 | Hikaru Sugiura | 4 |
| 3 | Kazuyuki Ando | 4 |
| #4 | Takahisa Yamazaki | 4 |
| #5 | Takehiro YAMORI | 4 |
| #6 | Hiroshi Sugitani | 3 |
| #7 | Kokoro KINOE | 3 |
| #8 | Naofumi Ezaki | 3 |
| #9 | Shinsuke Ozawa | 3 |
| #10 | Shinichiro Shimura | 3 |
| #11 | Yoshifumi Watanabe | 3 |
| #12 | Hiroki Endo | 2 |
| #13 | Mamoru Fukuda | 2 |
| #14 | Marie Morinaga | 2 |
| #15 | Manami Shimizu | 2 |
| #16 | Mitsuko Kitanohara | 2 |
| #17 | Shunta Nakamura | 2 |
| #18 | Shunsuke Uozumi | 2 |
| #19 | Toshihiro Bansyo | 2 |
| #20 | Toshihiro Endo | 2 |
| #21 | Tomohiro Matsuzawa | 2 |
| #22 | Yuki URANO | 2 |
| #23 | Atsushi Takata | 1 |
| #24 | Hironao Adachi | 1 |
| #25 | Hirohito Kubota | 1 |
| #26 | Hiroyuki Nakamura | 1 |
| #27 | Hideyuki Ujiie | 1 |
| #28 | Keiichiro Ishi | 1 |
| #29 | Kenji Shimomura | 1 |
| #30 | Kenji Yamada | 1 |
| #31 | Masayoshi Sakamoto | 1 |
| #32 | Manabu TACHI | 1 |
| #33 | Mamoru Wakabayashi | 1 |
| #34 | Naoya Masuda | 1 |
| #35 | Naoto Tsujino | 1 |
| #36 | Reina Saito | 1 |
| #37 | Ryosuke Miyachi | 1 |
| #38 | Shoji Kurita | 1 |
| #39 | Shinichiro Otsuka | 1 |
| #40 | Takashi Ebisawa | 1 |
| #41 | Tadashi TAKAKUSA | 1 |
| #42 | Toshiya SAIGUSA | 1 |
| #43 | Toru Sakabe | 1 |
| #44 | Yasuo Yamamoto | 1 |
| #45 | Yoshihisa Morita | 1 |