Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11946149 | Method for operating apparatus for producing alkali hydroxide | Tsutomu Ohnishi, Tsugiyoshi Osakabe, Tatsurou YAMASHITA, Takuya Shimura, Mikihito Sugiyama | 2024-04-02 |
| 9315908 | Electrolytic cell for producing chlorine—sodium hydroxide and method of producing chlorine—sodium hydroxide | Tomonori Idutsu, Koji Saiki, Kiyohito Asaumi | 2016-04-19 |
| 9181624 | Method of electrolysis employing two-chamber ion exchange membrane electrolytic cell having gas diffusion electrode | Mikihito Sugiyama, Kiyohito Asaumi | 2015-11-10 |
| 8940139 | Gas diffusion electrode equipped ion exchange membrane electrolyzer | Kiyohito Asaumi, Mitsuharu Hamamori, Tomonori Izutsu | 2015-01-27 |