Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9233987 | Method for producing monosilane and tetraalkoxysilane | Toshio Ohi, Haruaki Ito, Fanil Makhmutov | 2016-01-12 |
| 9115000 | Process for producing carbonyl sulfide | Hidejiro Yokoo, Shiho Irie | 2015-08-25 |
| 9045503 | Method for producing monosilane and tetraalkoxysilane | Toshio Ohi, Haruaki Ito, Fanil Makhmutov | 2015-06-02 |
| 8829221 | Method for producing monosilane and tetraalkoxysilane | Toshio Ohi, Haruaki Ito, Fanil Makhmutov | 2014-09-09 |
| 8692038 | Fluorine-containing compound purification method | Toshio Ohi, Katsutoshi Morinaka | 2014-04-08 |
| 8664438 | Process for producing carbonyl difluoride | Toshio Ohi, Hidejiro Yokoo | 2014-03-04 |
| 8415516 | Production process and purification process for 1,2,3,4-tetrachlorohexafluorobutane | Toshio Ohi | 2013-04-09 |
| 8404906 | Process for producing 1,2,3,4-tetrachlorohexafluorobutane | Toshio Ohi, Takami Ohe | 2013-03-26 |
| 8293955 | Production process for 1,2,3,4-tetrachlorohexafluorobutane and refining process | Toshio Ohi, Nobutoshi Sasaki, Kiyoshi Nomura | 2012-10-23 |
| 8258352 | Production process for chlorine-containing fluorine-containing compound | Toshio Ohi, Takami Ohe | 2012-09-04 |
| 8030528 | Process for producing 1,2,3,4-tetrachlorohexafluorobutane | Toshio Ohi | 2011-10-04 |
| 8003832 | Process for recovering pentafluoroethane, and production method of pentafluoroethane involving the process | Kazunari Kaga | 2011-08-23 |
| 7820127 | Method and apparatus for producing nitrogen trifluoride | Toshio Ohi, Yuji Sakai | 2010-10-26 |
| 7812202 | Process for producing hexafluoro-1,3-butadiene | Toshio Ohi | 2010-10-12 |
| 7799959 | Process for producing 1,2,3,4-tetrachlorohexafluorobutane | Toshio Ohi | 2010-09-21 |
| 7696392 | Purification method of 1,1-difluoroethane | — | 2010-04-13 |
| 7468466 | Process for producing hexafluoroethane and use thereof | Tatsuharu Arai | 2008-12-23 |
| 7208644 | Production and use of hexafluoroethane | Toshio Ohi | 2007-04-24 |
| 7179653 | Measuring method for concentration of halogen and fluorine compound, measuring equipment thereof and manufacturing method of halogen compound | Toshio Ohi, Kazunari Kaga, Ryuichi Tachi, Itsuaki Matsuda | 2007-02-20 |
| 7176337 | Process for producing perfluorocarbons and use thereof | Toshio Ohi | 2007-02-13 |
| 7138553 | Method for purifying tetrachloroethylene and process for producing hydrofluorocarbons | Toshio Ohi, Makoto Miyamura | 2006-11-21 |
| 7102039 | Production and use of octafluoropropane | Toshio Ohi | 2006-09-05 |
| 7084316 | Process for purifying pentafluoroethane, process for producing the same, and use thereof | Toshio Ohi | 2006-08-01 |
| 7074974 | Process for the production of fluoroethane and use of the same | Kazunari Kaga, Toshio Ohi | 2006-07-11 |
| 7064240 | Process for producing perfluorocarbons and use thereof | Toshio Ohi | 2006-06-20 |