Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5927326 | Multi stage type flow rate switching device | Katsuhiro Hiejima | 1999-07-27 |
| 5839470 | Three-way stopcock and flow rate control device in use thereof | Katsuhiro Hiejima | 1998-11-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5927326 | Multi stage type flow rate switching device | Katsuhiro Hiejima | 1999-07-27 |
| 5839470 | Three-way stopcock and flow rate control device in use thereof | Katsuhiro Hiejima | 1998-11-24 |