| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 13 | |
| #2 | China | 4 | |
| #3 | Taiwan | 2 | |
| #4 | United States | 2 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kamesawa Jiro | 5 |
| #2 | Kawai Tatsuya | 5 |
| #3 | Hagiwara Hideo | 3 |
| #4 | Kamezawa Jiro | 3 |
| #5 | Azuma Takao | 3 |
| #6 | Hisada Kouichi | 3 |
| #7 | Yamamoto Kenji | 2 |
| #8 | Kazuya Sugimoto | 1 |
| #9 | Okina Kengo | 1 |
| #10 | Tatsuya Kawai | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2009016756A1 | Cavitation preventive high differential pressure control valve | |
| WO2009008061A1 | Eccentric butterfly valve | |
| WO2008120349A1 | Check valve | |
| WO2008105056A1 | Lever device for valve opening/closing operation | |
| WO2008117344A1 | Valve opening degree detection device | |
| WO2008102444A1 | Check valve | |
| WO2007135744A1 | Check valve | |
| WO2007135721A1 | Valve drive device | |
| CN101163911A | The seat ring of eccentric-butterfly-valve and use thereof | |
| WO2007105311A1 | Butterfly valve | |
| WO2006070714A1 | Rotary actuator | |
| WO2004088184A1 | Butterfly valve |