Top Inventors at Showa 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Hayato Tsutsui | 4 |
| 2 | Takahiko Saito | 3 |
| 3 | Yosuke Murakami | 3 |
| #4 | Gota NAKANO | 2 |
| #5 | Naoya KUROIWA | 2 |
| #6 | Yoshimitsu Komuro | 2 |
| #7 | Eishi Ishimaru | 1 |
| #8 | Fumiaki Ishikawa | 1 |
| #9 | Genki Yanagidate | 1 |
| #10 | Hiroshi Endo | 1 |
| #11 | Hiroyuki Miyata | 1 |
| #12 | Hiroyuki Takahashi | 1 |
| #13 | Junichi Midorikawa | 1 |
| #14 | Kazunari Maeda | 1 |
| #15 | Kazuhiro Miwa | 1 |
| #16 | Katsushi Tanaka | 1 |
| #17 | Katsutoshi Yokoi | 1 |
| #18 | Kenji Fukasawa | 1 |
| #19 | Ken Isshiki | 1 |
| #20 | Kenji Kato | 1 |
| #21 | Kenji Suzuki | 1 |
| #22 | Kenji Takahashi | 1 |
| #23 | Kojiro Yoshida | 1 |
| #24 | Kyouichi Tagami | 1 |
| #25 | Masami Kuramochi | 1 |
| #26 | Masayuki Sasaki | 1 |
| #27 | Nobuyuki MURAGUCHI | 1 |
| #28 | Nobuaki Tanaka | 1 |
| #29 | Norifumi Terada | 1 |
| #30 | Satomi Hojo | 1 |
| #31 | Seiryo Konakai | 1 |
| #32 | Sumitaka Ito | 1 |
| #33 | Yosuke Fujikawa | 1 |
| #34 | Yutaka Hozumi | 1 |
| #35 | Yuki Koike | 1 |