Top Inventors at Maruyasu Industries Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Naruki Harada | 3 |
| 2 | Yasufumi Sakakibara | 2 |
| 3 | Haruhiko Kamino | 1 |
| #4 | Hiroyuki Sasaki | 1 |
| #5 | Katsuhiro Kanbara | 1 |
| #6 | Katsutoshi Kato | 1 |
| #7 | Kaoru Saotome | 1 |
| #8 | Kazuyuki Takehara | 1 |
| #9 | Takashi Hotta | 1 |
| #10 | Tamiyuki Nakane | 1 |
| #11 | Yuichiro Yoshida | 1 |