Top Inventors at Nittei Musen Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kiyotsugu Arai | 5 |
| 2 | Atsushi Harada | 5 |
| 3 | Koki Kamagome | 4 |
| #4 | Kohki Kamagome | 1 |
| #5 | Takashi Masuda | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Kiyotsugu Arai | 5 |
| 2 | Atsushi Harada | 5 |
| 3 | Koki Kamagome | 4 |
| #4 | Kohki Kamagome | 1 |
| #5 | Takashi Masuda | 1 |