Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468238 | Process for removing a nitrogen gas from mixture comprising N.sub.2 and CO or N.sub.2 ' CO.sub.2 and CO | Yogo Tukahara, Shigeki Hayashi, Masahiko Kumagai | 1984-08-28 |
| 4215008 | Rare earth-containing alloys and method for purification of hydrogen gas therewith | Zenzi Hagiwara, Susumu Sakaguchi, Yoshio YAMANAKA | 1980-07-29 |