Top Inventors at Ihi Rotating Machinery Engineering Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Toshimichi Taketomi | 2 |
| 2 | Atsushi Minegishi | 1 |
| 3 | Hisayuki Motoi | 1 |
| #4 | Kazumasa Miyahara | 1 |
| #5 | Ken Nakano | 1 |
| #6 | Kouji Ukai | 1 |
| #7 | Masayuki Kubota | 1 |
| #8 | Masashi Moriguchi | 1 |
| #9 | Naoki Nishiyama | 1 |
| #10 | Naomichi Oomori | 1 |
| #11 | Taketo Maruyama | 1 |
| #12 | Takashi Oyabu | 1 |
| #13 | Toshifumi Kitanobo | 1 |
| #14 | Tomonori Seki | 1 |
| #15 | Tsuneo Koki | 1 |
| #16 | Yosuke MATSUBARA | 1 |
| #17 | Yoshio Shimokura | 1 |
| #18 | Yuji Echizen | 1 |
| #19 | Yutaka Hirata | 1 |
| #20 | Yukihiro Maeda | 1 |