Top Inventors at Giken All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masaaki Ono | 4 |
| 2 | Akio Kitamura | 3 |
| 3 | Hiroaki Tanouchi | 2 |
| #4 | Toshio Ikeda | 2 |
| #5 | Yoshihiro Morioka | 2 |
| #6 | Hitoshi Mukaiyama | 1 |
| #7 | Kazuo Mukai | 1 |
| #8 | Katsuhiko Ono | 1 |
| #9 | Kazunari Takahashi | 1 |
| #10 | Kengo Nonaka | 1 |
| #11 | Mamoru Uesugi | 1 |
| #12 | Masahiko Yoshikawa | 1 |
| #13 | Masanori Kamenaga | 1 |
| #14 | Mitsuo Yasui | 1 |
| #15 | Nobutaka Kajiura | 1 |
| #16 | Noboru Maruyama | 1 |
| #17 | Ryosuke Hamamoto | 1 |
| #18 | Saburo Ashihara | 1 |
| #19 | Seizo Washizuka | 1 |
| #20 | Shinya Nakazawa | 1 |
| #21 | Tadamasa Fujimura | 1 |
| #22 | Tatsuya Saibara | 1 |
| #23 | Tomohiro Hayashi | 1 |
| #24 | Toshihiko Murata | 1 |
| #25 | Toshikazu Shibata | 1 |
| #26 | Toshiharu Suganuma | 1 |
| #27 | Yasuhiro Tanaka | 1 |
| #28 | Yoshiyuki Futamata | 1 |
| #29 | Yoshikazu Ishikawa | 1 |
| #30 | Yukihide Okamura | 1 |
| #31 | Masao Houmura | 1 |
| #32 | Norio Futakuchi | 1 |