Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643795 | Apparatus for purifying contaminated air | Ken Hirate, Shinichiro Sato, Kazunori Watagami | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643795 | Apparatus for purifying contaminated air | Ken Hirate, Shinichiro Sato, Kazunori Watagami | 1997-07-01 |