Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668014 | Device and method for estimating three nitrogen-including ionic substances in water | Hiroshi Tsugura | 1997-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668014 | Device and method for estimating three nitrogen-including ionic substances in water | Hiroshi Tsugura | 1997-09-16 |