Top Inventors at Seiko Instruments 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Akihiro Iino | 3 |
| 2 | Daisuke Yoshida | 2 |
| 3 | Kazuyuki Aizawa | 2 |
| #4 | Katsunobu Iguchi | 2 |
| #5 | Kouji Kawaguchi | 2 |
| #6 | Shigehiro Arai | 2 |
| #7 | Shunji Watanabe | 2 |
| #8 | Tomoki Ogura | 2 |
| #9 | Tsuneaki Tamachi | 2 |
| #10 | Yoshio Kitamura | 2 |
| #11 | Yuichi Yoshigi | 2 |
| #12 | Akio Naito | 1 |
| #13 | Akihito Okumura | 1 |
| #14 | Atsushi Murata | 1 |
| #15 | Hisaya Nakamura | 1 |
| #16 | Hiroo Okubo | 1 |
| #17 | Hozumi Yoda | 1 |
| #18 | Kazuhito Ogasa | 1 |
| #19 | Kenichi Kudo | 1 |
| #20 | Kenji Ogasawara | 1 |
| #21 | Keiichi Tozawa | 1 |
| #22 | Koichi Hatakeyama | 1 |
| #23 | Koji Ishii | 1 |
| #24 | Koichi Masuzawa | 1 |
| #25 | Kouhei Miyawaki | 1 |
| #26 | Matsuo Kishi | 1 |
| #27 | Masashi Kitamura | 1 |
| #28 | Misato Hanaoka | 1 |
| #29 | Miei Takahama | 1 |
| #30 | Norihisa Ando | 1 |
| #31 | Ryohei Sato | 1 |
| #32 | Satoshi Hoshino | 1 |
| #33 | Satoshi Sakai | 1 |
| #34 | Shinichi Sudo | 1 |
| #35 | Takayuki Kosaka | 1 |
| #36 | Tamotsu Maesawa | 1 |
| #37 | Takayuki Satodate | 1 |
| #38 | Takumi Seino | 1 |
| #39 | Tetsuya Nobe | 1 |
| #40 | Tomohiro Murata | 1 |