Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653126 | Packing material and air separator | Susumu Harada, Satihiro Yoshimatsu, Naruyasu Okamoto | 1997-08-05 |
| 4816237 | Process for purifying argon gas and apparatus used therefor | Masaomi Tomomura, Shunsuke Nogita | 1989-03-28 |
| 4737167 | Method and apparatus for separating gas mixture | Misayo Ohtani, Masaomi Tomomura, Shunsuke Nogita | 1988-04-12 |
| 4623524 | Process and apparatus for recovering inert gas | Osamu Kita, Masaomi Tomomura | 1986-11-18 |
| 4582519 | Gas-liquefying system including control means responsive to the temperature at the low-pressure expansion turbine | Yasuo Tasaka | 1986-04-15 |