Top Inventors at Iwaki Co. 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroyuki Kawai | 1 |
| 2 | Katsumi Kawaguchi | 1 |
| 3 | Mikio Mizukoshi | 1 |
| #4 | Toshiaki Hada | 1 |
| #5 | Toshinori Yanagihara | 1 |
| #6 | Yoshio Ogawa | 1 |
| #7 | Yuichi Matsumoto | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroyuki Kawai | 1 |
| 2 | Katsumi Kawaguchi | 1 |
| 3 | Mikio Mizukoshi | 1 |
| #4 | Toshiaki Hada | 1 |
| #5 | Toshinori Yanagihara | 1 |
| #6 | Yoshio Ogawa | 1 |
| #7 | Yuichi Matsumoto | 1 |