Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12319634 | Method for purifying 1,2-difluoroethylene (HFO-1132) | Takashi Usui, Kazuhiro Takahashi | 2025-06-03 |
| 12275681 | Olefin compound production method | Yuuko ITO, Tsubasa NAKAUE, Takehiro Chaki, Takashi Usui, Megumi KUSHIDA | 2025-04-15 |
| 12258364 | Method for purifying phosphorus-containing olefin compound salt and method for producing olefin compound using purified product obtained thereby | Yuuko ITO, Tsubasa NAKAUE, Takehiro Chaki, Takashi Usui, Megumi KUSHIDA | 2025-03-25 |
| 11691935 | Production method for fluoro-ethane and production method for fluoro-olefin | Takashi Usui, Takehiro Chaki, Tsubasa NAKAUE, Kazuhiro Takahashi | 2023-07-04 |
| 11618724 | Method for purifying 1,2-difluoroethylene (HFO-1132) | Takashi Usui, Kazuhiro Takahashi | 2023-04-04 |
| 11560345 | Fluoroethane production method and fluoroolefin production method | Takashi Usui, Takehiro Chaki, Kazuhiro Takahashi, Tsubasa NAKAUE | 2023-01-24 |
| 11377406 | Fluoroethane production method and fluoroolefin production method | Takashi Usui, Takehiro Chaki, Kazuhiro Takahashi, Tsubasa NAKAUE | 2022-07-05 |