Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7293549 | Sealing mechanism for tubular body | — | 2007-11-13 |
| 6834891 | Pipe joint | Satoshi Matsubara | 2004-12-28 |
| 6186561 | Retainer for piping connector | Masao Ueno | 2001-02-13 |
| 5779286 | Pipe joining construction | — | 1998-07-14 |
| 5219188 | Construction for preventing incomplete connection of pipes | Takeshi Abe | 1993-06-15 |