Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6056014 | Drainage collective pipe joint | Noriatsu Kojima, Toshihiko Kawamura | 2000-05-02 |
| 5887913 | Pipe joint structure | Noriatsu Kojima | 1999-03-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6056014 | Drainage collective pipe joint | Noriatsu Kojima, Toshihiko Kawamura | 2000-05-02 |
| 5887913 | Pipe joint structure | Noriatsu Kojima | 1999-03-30 |