Top Inventors at Sumitomo (Sei) Steel Wire All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenichi Okamoto | 6 |
| 2 | Nozomu Kawabe | 5 |
| 3 | Hiromu Izumida | 4 |
| #4 | Shinei Takamura | 4 |
| #5 | Yuichi Sano | 4 |
| #6 | Hitoshi Wakahara | 3 |
| #7 | Katsuhito Oshima | 3 |
| #8 | Teruyuki Murai | 3 |
| #9 | Toshihiko Niki | 3 |
| #10 | Yasuo Sakai | 3 |
| #11 | Yoshihiko Touda | 3 |
| #12 | Hiroshi Sasabe | 2 |
| #13 | Junichi Kodama | 2 |
| #14 | Jun Sugawara | 2 |
| #15 | Keisuke Aramaki | 2 |
| #16 | Kiminori Matsushita | 2 |
| #17 | Masato Yamada | 2 |
| #18 | Shinichi Miyazaki | 2 |
| #19 | Shingo Nakajima | 2 |
| #20 | Takashi Ichiki | 2 |
| #21 | Tomoya Maekawa | 2 |
| #22 | Yukihiro Oishi | 2 |
| #23 | Ippei Furukawa | 1 |
| #24 | Katsutoshi Iwamoto | 1 |
| #25 | Kazuhiko Saito | 1 |
| #26 | Kazuaki Sugimura | 1 |
| #27 | Kazuhiko Tsukada | 1 |
| #28 | Kenichi Shimizu | 1 |
| #29 | Koji Kato | 1 |
| #30 | Koichiro Natori | 1 |
| #31 | Masashi Oikawa | 1 |
| #32 | Masaki Saito | 1 |
| #33 | Noritoshi Takamura | 1 |
| #34 | Shuhei Maeda | 1 |
| #35 | Shuichi Tanaka | 1 |
| #36 | Takahide Saiki | 1 |
| #37 | Takayuki Yamagiwa | 1 |
| #38 | Takashi Yoshioka | 1 |
| #39 | Tomoyuki Hirai | 1 |
| #40 | Toshiro Kido | 1 |
| #41 | Toshio Shimizu | 1 |
| #42 | Yoshitaka Ishihara | 1 |
| #43 | Yoshiyuki Matsubara | 1 |