Top Inventors at Seiko Clock All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Toyonori Muraji | 8 |
| 2 | Koji Baba | 4 |
| 3 | Motohiro Tako | 4 |
| #4 | Hiroyuki Hashizume | 3 |
| #5 | Hiroshi Takematsu | 3 |
| #6 | Katsumi Shimamura | 3 |
| #7 | Keiko Yoshida | 2 |
| #8 | Masanao Yokoyama | 2 |
| #9 | Miyuki Imamura | 2 |
| #10 | Satoru Yamauchi | 2 |
| #11 | Seiji Odaka | 2 |
| #12 | Shigeru Kohata | 2 |
| #13 | Takayuki Kanaizumi | 2 |
| #14 | Fumiaki Takiguchi | 1 |
| #15 | Hiroharu Kitaura | 1 |
| #16 | Katsuhiro Hatano | 1 |
| #17 | Masafumi Yamamoto | 1 |
| #18 | Nobuhiro Tanaka | 1 |
| #19 | Shinichi Miyamoto | 1 |
| #20 | Yumi Kubota | 1 |