| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 12 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Climate change mitigation in wastewater treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aoki Hideo | 7 |
| #2 | Hase Eki | 3 |
| #3 | Aoyama Takashi | 1 |
| #4 | Nagamatsu Akio | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2002187089A | Gripping device | |
| JP2000038736A | Linking device and working machine using such linking device | |
| JP2000314238A | Fork grab | |
| JP2000291047A | Bucket | |
| JP2000273896A | Bucket with cutter | |
| JPH1181364A | Bucket clam | |
| JPH10212834A | Vibration type crusher | |
| JPH10180218A | Industrial waste treating device | |
| JPH10151358A | Electric light pole crusher | |
| JPH10147491A | Bucket clam | |
| JPH10139353A | Fork grab | |
| JPS5921889A | Rotary breaker |