Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12173809 | Constant-pressure valve | — | 2024-12-24 |
| 11867316 | Flow rate control valve and producing method of flow rate control valve | — | 2024-01-09 |
| 11287297 | Liquid micrometer with a set flow rate value | Kazuhiro Yoshikawa, Makio Asano, Hitomi Hashimoto, Takuya Tsuzuki | 2022-03-29 |
| 9323251 | Flow control valve and flow control system using same | — | 2016-04-26 |
| 8678342 | Air-operated valve | Takahiro Sakai, Hironori Matsuzawa, Shuji Izumo | 2014-03-25 |
| 6805156 | Constant flow valve and constant flow mixing method | — | 2004-10-19 |
| 6386509 | Back pressure control valve | Hironori Mastuzawa | 2002-05-14 |
| 6354636 | Tube connecting structure | Hironori Matsuzawa | 2002-03-12 |
| 6199582 | Flow control valve | Hironori Matsuzawa, Tsuyoshi Hida | 2001-03-13 |