Top Inventors at Sumitomo Construction Machinery Co. 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Takeya IZUMIKAWA | 8 |
| 2 | Takaaki Morimoto | 3 |
| 3 | Hiroyuki Tsukamoto | 2 |
| #4 | Youji Misaki | 2 |
| #5 | Hajime ARAGAKI | 1 |
| #6 | Hidehiko Katoh | 1 |
| #7 | Hisaho MINO | 1 |
| #8 | Kouichiro Tomita | 1 |
| #9 | Ryuji Shiratani | 1 |
| #10 | Takashi Nishi | 1 |
| #11 | Tomoki KUROKAWA | 1 |
| #12 | Tota TERAMOTO | 1 |