Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768311 | Ion measuring device | Yoshiaki Aiki | 2004-07-27 |
| 6703785 | Negative ion generator | Yoshiaki Aiki | 2004-03-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768311 | Ion measuring device | Yoshiaki Aiki | 2004-07-27 |
| 6703785 | Negative ion generator | Yoshiaki Aiki | 2004-03-09 |