Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7971909 | Pipe joint, refrigeration device, heat pump hot water supply device, closing valve, water supply piping, method of connecting piping, and in-the field piping method | Haruo Nakata, Hiromune Matsuoka | 2011-07-05 |