Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7300640 | Method for clarifying exhaust gas | Kenji Ohtsuka, Satoshi Arakawa | 2007-11-27 |
| 6960552 | Decompositionally treating agent and decompositionally treating method for fluorocarbons | Kenji Otsuka, Youji Nawa, Tomohisa Ikeda | 2005-11-01 |