Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173254 | Steel having excellent vibration-dampening properties and weldability | Keniti Amano, Tomoya Koseki, Shozaburo Nakano | 1992-12-22 |
| RE33006 | Feed-water heater comprising low C-Cr-Mo steel components used under wet steam | Fumio Hataya, Masakiyo Izumiya, Yoshikuni Ohshima, Koichi Akutsu, Masaaki Ishikawa +2 more | 1989-08-01 |
| 4814141 | High toughness, ultra-high strength steel having an excellent stress corrosion cracking resistance with a yield stress of not less than 110 kgf/mm.sup.2 | Yasuho Imai, Yoichiro Tobe, Ko Moriyama, Seinosuke Yano, Seimei Karino | 1989-03-21 |
| 4529454 | Low C-Cr-Mo steel used under wet steam | Fumio Hataya, Masakiyo Izumiya, Yoshikuni Ohshima, Koichi Akutsu, Masaaki Ishikawa +2 more | 1985-07-16 |
| 4400225 | Cr-Mo Steel for use as very thick plates of 75 mm or more for oil refinery, coal liquefaction and coal gasification equipment | Masaaki Ishikawa, Makoto Imanaka | 1983-08-23 |