Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7033497 | Filter cartridge | Osamu Yamaguchi, Hideo Nobuhara | 2006-04-25 |
| 6749753 | Filter of high accuracy | Osamu Yamaguchi, Satoshi Ogata | 2004-06-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7033497 | Filter cartridge | Osamu Yamaguchi, Hideo Nobuhara | 2006-04-25 |
| 6749753 | Filter of high accuracy | Osamu Yamaguchi, Satoshi Ogata | 2004-06-15 |