Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985052 | Process for producing high purity oxygen gas from air | Kazuo Haruna, Kanji Ueda, Masahiro Inoue | 1991-01-15 |
| 4917710 | Process for recovering oxygen enriched gas | Kazuo Haruna, Kanji Ueda, Masahiro Inoue | 1990-04-17 |