Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8104742 | Flow control valve | Tetsuya Ishihara, Yukie Nakamura, Hiroto Yasue | 2012-01-31 |
| 7389969 | Chemical liquid valve | Akinori Masamura | 2008-06-24 |
| 7322557 | Chemical liquid control valve | Toshiyuki Nagao, Hiroshi Tomita | 2008-01-29 |
| 7070160 | Diaphragm valves | Eitaro Ijichi | 2006-07-04 |