Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215659 | Device for producing mineral-containing water for water storage vessel | — | 1993-06-01 |
| 4787973 | Device for converting water into mineral water | Hiroshi Maki | 1988-11-29 |