Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11953110 | Valve device | — | 2024-04-09 |
| 11713958 | Position detection sensor | — | 2023-08-01 |
| 11333256 | Valve mechanism for discharging fluid from a valve port | — | 2022-05-17 |
| 11015718 | Valve device | — | 2021-05-25 |
| 10738894 | Valve mechanism for removing foreign matter at valve port | — | 2020-08-11 |
| 10605408 | Steam trap monitoring system, pipe collection device, and steam trap unit | — | 2020-03-31 |
| 9791104 | Float type drain trap | — | 2017-10-17 |
| 8950429 | Valve-member monitoring system | Mamoru Nagase | 2015-02-10 |
| D706392 | Automatic drain valve | — | 2014-06-03 |
| D696749 | Automatic drain valve | Tetsuo Asada | 2013-12-31 |
| 8500091 | Opening and closing valve including a packing gland and a yolk sleeve | — | 2013-08-06 |
| D679780 | Automatic drain valve | Tetsuo Asada | 2013-04-09 |
| D676110 | Automatic drain valve | Tetsuo Asada | 2013-02-12 |
| D674472 | Steam trap | Tetsuo Asada | 2013-01-15 |
| 8302619 | Float valve apparatus and its cleaning method | — | 2012-11-06 |
| D666700 | Steam trap | Tetsuo Asada | 2012-09-04 |
| 6131602 | Condensate discharge device | — | 2000-10-17 |
| 5884654 | Condensate discharge device | — | 1999-03-23 |
| 5287878 | Free float steam trap | — | 1994-02-22 |
| D338708 | Steam trap | — | 1993-08-24 |
| 5186203 | Free float steam trap | — | 1993-02-16 |
| 4809736 | Piston structure for pressure reducing valve | Takeshi Yokoyama | 1989-03-07 |
| 4736886 | Disk type steam trap | — | 1988-04-12 |
| 4300588 | Steam trap with spherical inverted bucket float | Katsuji Fujiwara, Osamu Miyata | 1981-11-17 |