Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641717 | Water purifier | Atsushi Hatakeyama, Kunio Kido, Yoshiyuki Matsuoka | 2003-11-04 |
| 5653868 | Diverter and water purifier having same | Manabu Yanou, Ikuo Igami, Osami Kato | 1997-08-05 |