Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304234 | Gas separation process and unit therefor | Ryuichiro Kajiyama, Yoshimi Okada, Seiya Hirohama, Tetsuo Shibagaki, Toshio Kushida | 1994-04-19 |
| 5284983 | Process for purifying aqueous crude ethanol solution | Tsunehisa Muto, Futoshi Kanegae, Seiya Hirohama, Masazumi Ojiro | 1994-02-08 |