| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 34 | |
| #2 | EPO (European Patent Office) | 10 | |
| #3 | United States | 9 | |
| #4 | Canada | 7 | |
| #5 | United Kingdom | 4 | |
| #6 | France | 3 | |
| #7 | Germany | 2 | |
| #8 | Denmark | 2 | |
| #9 | Republic of Korea | 2 | |
| #10 | Sweden | 2 | |
| #11 | Brazil | 1 | |
| #12 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Chemical engineering | |
| #5 | Packaging and shipping | |
| #6 | Measurement | |
| #7 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sonoda Yoshiteru | 17 |
| #2 | Mese Hisayoshi | 12 |
| #3 | Ogawa Hiroshi | 9 |
| #4 | Fukumoto Katsuyuki | 6 |
| #5 | Komatsu Shiro | 5 |
| #6 | Ogawa Susumu | 4 |
| #7 | Sekoguchi Kotohiko | 4 |
| #8 | Sonoda Y | 3 |
| #9 | Suzuki Kazunori | 3 |
| #10 | Nakazawa Masahiko | 3 |
| Publication | Filing date | Title |
|---|---|---|
| EP0242825A2 | Apparatus for interchanging orifice plates for orifice flowmeter | |
| EP0173836A1 | Control valve | |
| EP0139246A2 | Ball valve | |
| EP0116855A2 | Control valve | |
| CA1201608A | Precision pressure gauge | |
| US4630851A | Pipe couplings | |
| EP0116734A1 | Valve control device | |
| EP0081985A2 | Vehicle for displaying goods | |
| JPS596488A | Pipe joint | |
| JPS591876A | Butterfly valve | |
| JPS591875A | Butterfly valve | |
| JPS58193995A | Regulating valve for minute flow rate | |
| GB2112291A | Automatic cistern | |
| JPS57161373A | Dilution valve | |
| JPS5765461A | Valve | |
| JPS5765463A | Ball valve | |
| JPS56134672A | Ball valve | |
| JPS56124775A | Ball valve | |
| JPS56114593A | Manufacture of valve seat | |
| JPS56109968A | Solenoid valve |