Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324434 | Water purifying apparatus | Isamu Shigeta, Shiro Saito, Mitsuhiro Hayamizu | 1994-06-28 |
| 5281330 | Water purifier | Isamu Shigeta, Shiro Saito | 1994-01-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324434 | Water purifying apparatus | Isamu Shigeta, Shiro Saito, Mitsuhiro Hayamizu | 1994-06-28 |
| 5281330 | Water purifier | Isamu Shigeta, Shiro Saito | 1994-01-25 |