Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686751 | Method and apparatus for detecting negative ion in water | Takayuki Saito, Kanroku Chounan | 2004-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686751 | Method and apparatus for detecting negative ion in water | Takayuki Saito, Kanroku Chounan | 2004-02-03 |