Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12359752 | Stainless steel pipe and method for manufacturing same | Shunsuke Sasaki, Masao Yuga, Tatsuro Katsumura | 2025-07-15 |
| 12331371 | Stainless steel pipe and method for manufacturing same | Shunsuke Sasaki, Masao Yuga, Tatsuro Katsumura | 2025-06-17 |
| 12172202 | Skew rolling apparatus, method for manufacturing seamless pipe shell, and method for manufacturing seamless steel pipe | Shunsuke Sasaki, Tatsuro Katsumura | 2024-12-24 |
| 12140265 | Seamless pipe and method for manufacturing same | Shunsuke Sasaki, Masao Yuga, Tatsuro Katsumura | 2024-11-12 |
| 11453929 | Cooling device and production method for rail | Kenji Okushiro, Hiroshi Ishikawa | 2022-09-27 |
| 11230747 | Method of quenching steel pipe, apparatus for quenching steel pipe, method of manufacturing steel pipe and facility for manufacturing steel pipe | Hiroyuki Fukuda | 2022-01-25 |
| 10563278 | Rail manufacturing method and manufacturing equipment | Kenji Okushiro, Hiroyuki Fukuda, Moriyasu Yamaguchi | 2020-02-18 |
| 10472693 | Head hardened rail manufacturing method and manufacturing apparatus | Hiroyuki Fukuda, Kenji Okushiro | 2019-11-12 |
| 10214795 | Rail manufacturing method and manufacturing equipment | Kenji Okushiro, Hiroyuki Fukuda, Moriyasu Yamaguchi | 2019-02-26 |
| 9260774 | Method for manufacturing hot dip galvanized steel sheet | Katsuya Hoshino, Takahiro Kubota, Masahiko Tada, Masayasu Nagoshi, Wataru Tanimoto +1 more | 2016-02-16 |