Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D923144 | Manifold type electromagnetic valve | Seietsu Sumiyoshi | 2021-06-22 |
| D911491 | Manifold type electromagnetic valve | Seietsu Sumiyoshi | 2021-02-23 |
| 8807531 | Vacuum valve bellows | — | 2014-08-19 |
| 7527238 | Protection structure for rod seal member of two-port valve | Toyonobu Sakurai | 2009-05-05 |
| 7401760 | Vacuum regulating valve | Toyonobu Sakurai | 2008-07-22 |
| 6805152 | Poppet valve with heater | Mamoru Fukuda | 2004-10-19 |
| 6748969 | Poppet valve with heater | Toyonobu Sakurai | 2004-06-15 |
| 6464203 | Swing-door gate valve | Tsuneo Ishigaki, Kenji Waragai | 2002-10-15 |
| 6390449 | Gate valve | Tsuneo Ishigaki, Kenji Waragai | 2002-05-21 |
| 6095193 | Smooth vent valve | Tsuneo Ishigaki | 2000-08-01 |