Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960552 | Decompositionally treating agent and decompositionally treating method for fluorocarbons | Kenji Otsuka, Youji Nawa, Koshi Ochi | 2005-11-01 |
| 6749819 | Process for purifying ammonia | Kenji Otsuka, Satoshi Arawaka, Takashi Kasaya | 2004-06-15 |
| 6579509 | Method of cleaning of harmful gas and cleaning apparatus | Kenji Otsuka, Naoki Muranaga, Satoshi Arakawa | 2003-06-17 |