Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10151416 | Pipe joint | Taku Tomita, Shuichi Saito | 2018-12-11 |
| 9689520 | Pipe joint | Taku Tomita, Shuichi Saito | 2017-06-27 |
| 7318609 | Chuck and tube joint | Keiichiro Naito, Taku Tomita, Hitoshi Hamasaki | 2008-01-15 |
| 7213845 | Tube joint | Motohiro Sato, Noriyoshi Maruyama | 2007-05-08 |
| 6908120 | Tube joint | Taku Tomita, Motohiro Sato, Keiichiro Naito, Hitoshi Hamasaki | 2005-06-21 |
| 6681803 | Socket and plug attachment mechanism for tube joint | Keiichirou Naito | 2004-01-27 |
| 6283443 | Chuck and tube joint | — | 2001-09-04 |
| D435635 | Socket for a coupler | — | 2000-12-26 |
| 5722696 | Easy-connect-and-disconnect tube coupling | — | 1998-03-03 |