Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649912 | Pipe connector | Takanori Nagaya, Makoto Kishida, Noriaki Fujita | 2023-05-16 |
| 8925974 | Connectors incorporating retainers and stopper mechanisms | Takanori Nagaya, Morio Narita | 2015-01-06 |
| 8573652 | Pipe joints | Yukihiro Ogawa | 2013-11-05 |
| 8292333 | Pipe joints | Yukihiro Ogawa | 2012-10-23 |
| 6328344 | Pipe fitting with improved fitting checker | Masatoshi Harada | 2001-12-11 |
| 6260889 | Connector having enlargement restraining means | Masatoshi Harada, Hisatsugu Goto, Yasushi Miyamoto | 2001-07-17 |
| 5808801 | Head mount display and an optical system for use in the display | Shigeru Nakayama | 1998-09-15 |
| 5704658 | Connector having improved removability | Minoru Kaneko | 1998-01-06 |