Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314861 | Manufacturing method of elbows made of cast stainless steel | Hisakatsu Nishihara, Arata Yoshimitsu, Sueyoshi Noji | 1982-02-09 |
| 4224061 | High corrosion resistant and high strength medium Cr and low Ni stainless cast steel | Hisashi Hiraishi, Toshiaki Morichika, Katsutaro Akamatsu | 1980-09-23 |
| 4218268 | High corrosion resistant and high strength medium Cr and low Ni stainless cast steel | Hisashi Hiraishi, Toshiaki Morichika, Katsutaro Akamatsu | 1980-08-19 |