| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Japan | 5 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Germany | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Chemical engineering | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Mixing | |
| #3 | Unspecified technologies | |
| #4 | Shafts | |
| #5 | Building materials | |
| #6 | Testing of structures | |
| #7 | Special measuring | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Matsushita Mitsuyoshi | 11 |
| #2 | Nagai Yataro | 10 |
| #3 | Yamauchi Yuji | 8 |
| #4 | Nagai Sanjiro | 6 |
| #5 | Ohbori Hiroshi | 4 |
| #6 | Terasaki Kiyoshi | 3 |
| #7 | Tokumoto Kei | 3 |
| #8 | Ishibashi Osamu | 3 |
| #9 | Inoue Kenji C O Mitsubishi Kas | 1 |
| #10 | Uezono Teiji | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0454374A2 | Method of predicting abnormality of mechanical seal and apparatus for predicting the same | |
| US5067733A | Mechanical seal including a split seal ring | |
| JPH03177661A | Non-contact mechanical seal | |
| JPH01316567A | Noncontact mechanical seal | |
| JPH01261565A | Axially movable shaft sealing device | |
| WO8701052A1 | Fluid stirrer | |
| JPS62152526A | Fluid stirring apparatus | |
| JPS6242729A | Fluid agitator |