Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4781735 | Enrichment in oxygen gas | Taichi Tagawa, Shigeki Hayashi, Yasumitsu Mizuguchi | 1988-11-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4781735 | Enrichment in oxygen gas | Taichi Tagawa, Shigeki Hayashi, Yasumitsu Mizuguchi | 1988-11-01 |