Top Inventors at Hazama All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Terunobu Maeda | 6 |
| 2 | Atsunori Negishi | 3 |
| 3 | Eiichi Kudou | 1 |
| #4 | Hiromi Uchida | 1 |
| #5 | Junji Igawa | 1 |
| #6 | Kazuyuki Ouchi | 1 |
| #7 | Koichi Taniguchi | 1 |
| #8 | Masatoshi Sasaki | 1 |
| #9 | Reiko Tanaka | 1 |
| #10 | Shoichi Yokochi | 1 |
| #11 | Takashi Sakai | 1 |
| #12 | Tatsuo Suzuki | 1 |
| #13 | Toshio Enokida | 1 |
| #14 | Tsuyoshi Sugio | 1 |
| #15 | Yasunori Kimura | 1 |
| #16 | Yasuo Nogami | 1 |
| #17 | Yoichi Honda | 1 |
| #18 | Yoshiaki Ishida | 1 |
| #19 | Yoshihito Minami | 1 |
| #20 | Yutaka Hachinohe | 1 |
| #21 | Tomio Jatani | 1 |
| #22 | Sohta Takatsu | 1 |
| #23 | Akihide Imamura | 1 |