Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10544479 | Heat treatment device, heat treatment method, and rail steel | Masaharu Ueda, Kenji Saita | 2020-01-28 |
| 10526674 | Stress-relief heat treatment apparatus | Masaharu Ueda | 2020-01-07 |
| 10144983 | Method of reheating rail weld zone | Masaharu Ueda, Katsuya Iwano, Hideo Tottori, Takeshi Yamamoto | 2018-12-04 |
| 8557064 | Method of cooling rail weld zone, and rail weld joint | Masaharu Ueda, Katsuya Iwano, Seiji Sugiyama | 2013-10-15 |
| 8353443 | Device and method for cooling rail weld zone | Seiji Sugiyama, Mitsugu Kajiwara | 2013-01-15 |
| 5175405 | Method of automatically welding rails | Makoto Okumura, Koichi Shinada, Nobuyuki Aoki, Kazuo Nagatomo, Hirohisa Fujiyama | 1992-12-29 |