Top Inventors at Maruyama Industrial Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Eiki Maruyama | 4 |
| 2 | Tetsuo Imai | 2 |
| 3 | Nobushige Kobayashi | 1 |
| #4 | Satoshi Kazama | 1 |
| #5 | Toshio Yamazaki | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Eiki Maruyama | 4 |
| 2 | Tetsuo Imai | 2 |
| 3 | Nobushige Kobayashi | 1 |
| #4 | Satoshi Kazama | 1 |
| #5 | Toshio Yamazaki | 1 |