| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 180 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Control | |
| #5 | Machine tools | |
| #6 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Servomotors | |
| #4 | Systems controlling non-electric variables | |
| #5 | Shaping of plastics | |
| #6 | Pipes | |
| #7 | Measuring volume | |
| #8 | Metal-working | |
| #9 | Controlling combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yurugi Yoshinori | 73 |
| #2 | Nakanishi Mikima | 18 |
| #3 | Tanaka Toshiji | 16 |
| #4 | Uno Takayoshi | 14 |
| #5 | Hisada Koichi | 14 |
| #6 | Kawai Koji | 9 |
| #7 | Kamezawa Jiro | 6 |
| #8 | Nabeshima Shogo | 5 |
| #9 | Hagiwara Hideo | 5 |
| #10 | Hata Naoyuki | 5 |
| Publication | Filing date | Title |
|---|---|---|
| JPH1182758A | Butterfly valve | |
| JPH1163293A | Butterfly valve and machining method thereof | |
| JPH1137307A | Butterfly valve | |
| JPH1113896A | Butterfly valve | |
| JPH1113899A | Butterfly valve | |
| JPH112337A | Valve element of butterfly valve | |
| JPH10331806A | Rotary actuator | |
| JPH10331812A | Rotary actuator | |
| JPH10311436A | Driving device for rotating valve | |
| JPH10311439A | Shaft sealing device for butterfly valve | |
| JPH10292874A | Dual plate check valve | |
| JPH10281304A | Metal sheet ring for butterfly valve | |
| JPH10281314A | Dual plate check valve | |
| JPH10281340A | Dew formation preventive device for butterfly valve | |
| JPH10252927A | Positioner for valve | |
| JPH10252926A | Electric actuator | |
| JPH10252922A | Positioner for valve | |
| JPH10220603A | Dual plate check valve | |
| JPH10220604A | Dual plate check valve | |
| JPH10213240A | Dual plate check valve |