Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33006 | Feed-water heater comprising low C-Cr-Mo steel components used under wet steam | Masakiyo Izumiya, Yoshikuni Ohshima, Koichi Akutsu, Syuzo Ueda, Masaaki Ishikawa +2 more | 1989-08-01 |
| 4529454 | Low C-Cr-Mo steel used under wet steam | Masakiyo Izumiya, Yoshikuni Ohshima, Koichi Akutsu, Syuzo Ueda, Masaaki Ishikawa +2 more | 1985-07-16 |
| 4499158 | Welded structural member having high erosion resistance | Tsutomu Onuma | 1985-02-12 |
| 4462957 | Sliding mechanism | Yutaka Fukui, Yoshimitsu Tobita, Mitsuhiro Watanabe, Noriaki Mase | 1984-07-31 |