Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886769 | Active gas adsorbing element and method of manufacturing | Hiroshi Okano | 1989-12-12 |
| 4871607 | Humidity exchanger element | Hiroshi Okano | 1989-10-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886769 | Active gas adsorbing element and method of manufacturing | Hiroshi Okano | 1989-12-12 |
| 4871607 | Humidity exchanger element | Hiroshi Okano | 1989-10-03 |