Top Inventors at Sankyo Radiator Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Yoji Yamashita | 4 |
| 2 | Makoto Tsujita | 2 |
| 3 | Takashi Ishimori | 2 |
| #4 | Hiroyuki Sugihara | 1 |
| #5 | Junji Honma | 1 |
| #6 | Katsuji Inoue | 1 |
| #7 | Keiichi Nakagome | 1 |
| #8 | Naoto Miwa | 1 |
| #9 | Takayuki Hayashi | 1 |
| #10 | Youji Yamashita | 1 |
| #11 | Akio Oosawa | 1 |
| #12 | Amane Yamamoto | 1 |