Top Inventors at Sumitomo Pipe & Tube Co. All Time
Showing 1–23 of 23 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Atsushi Tomizawa | 12 |
| 2 | Shinjiro Kuwayama | 8 |
| 3 | Saburo Inoue | 7 |
| #4 | Mitsutoshi Uchida | 5 |
| #5 | Fumihiko Kikuchi | 4 |
| #6 | Kenji Moroi | 2 |
| #6 | Manabu Okahisa | 2 |
| #6 | Naoaki Shimada | 2 |
| #6 | Takashi Suyama | 2 |
| #6 | Yoshitaka Hattori | 2 |
| #6 | Yusuke Kinoshita | 2 |
| #12 | Hiroaki Kubota | 1 |
| #12 | Kazuhiro Ezure | 1 |
| #12 | Kazumi Shimoii | 1 |
| #12 | Koichi Kuroda | 1 |
| #12 | Masayasu Kojima | 1 |
| #12 | Mitsusato Hara | 1 |
| #12 | Mitsutoshi Kano | 1 |
| #12 | Naoki Shimada | 1 |
| #12 | Shoichi Abe | 1 |
| #12 | Tatsuya Okui | 1 |
| #12 | Yasushi Watanabe | 1 |
| #12 | Yoshikatsu Iino | 1 |