Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702505 | Method for collecting volatile organic substances | Jun Izumi, Akinori Yasutake, Hiroyuki Tsutaya, Kenichi Hamada | 1997-12-30 |
| 5695546 | Method for collecting volatile organic substances | Jun Izumi, Akinori Yasutake, Hiroyuki Tsutaya, Kenichi Hamada | 1997-12-09 |