| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 5 | |
| #2 | Australia | 2 | |
| #3 | Japan | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Foundations and excavations | |
| #3 | Hydraulic engineering | |
| #4 | Shaping clay | |
| #5 | Water treatment | |
| #6 | Cranes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hayashi Hiroshi | 11 |
| #2 | Hiroshi Hayashi | 1 |
| #3 | Nomura Yasuo | 1 |
| #4 | Tameshige Kenichi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN101052770A | Upper ratation type working machine with fluid discharge part | |
| WO2006013619A1 | Slewing type holding device for mounting on power shovel or crane | |
| JP2004358327A | Cleaning apparatus for fluid vessel or storage vessel of ultra-violet emitter | |
| JP2004270274A | Fluid supplying device attached power shovel |