Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4519813 | Process for extraction of highly purified oxygen | Tatuo Yamamoto, Hiroshi Kurozumi | 1985-05-28 |
| 4259299 | Process for removing ozone from an ozone-containing gas | Iwao Uenoyama, Hiroo Ishino | 1981-03-31 |
| 4215008 | Rare earth-containing alloys and method for purification of hydrogen gas therewith | Sigeo Matsui, Susumu Sakaguchi, Yoshio YAMANAKA | 1980-07-29 |