| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 12 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ogawa Saburo | 6 |
| #2 | Nomura Mikio | 5 |
| #3 | Kato Takashi | 5 |
| #4 | Ishii Hitoshi | 5 |
| #5 | Kishimoto Katsutoshi | 4 |
| #6 | Oda Tsutomu | 4 |
| #7 | Sagawa Tomoaki | 3 |
| #8 | Tominari Masaru | 3 |
| #9 | Kaga Tsutomu | 3 |
| #10 | Abe Kiyoyuki | 2 |
| Publication | Filing date | Title |
|---|---|---|
| JP2009233598A | Dust splash prevention device in powder scattering apparatus | |
| JP2004016986A | System for modifying polluted soil | |
| JP2002066293A | Stirring device | |
| JP2002070002A | Mounting structure of stirring rod in mixing stirrer | |
| JP2000297282A | Mud modification | |
| JP2000255787A | Supply system for particulate matter | |
| JPH07246399A | Caking method in soft sludge discharging system and device therefor | |
| JPH0711626A | Mixing stirring device | |
| JPH06306886A | Dredging bucket | |
| JPH06280283A | Dredging bucket | |
| JPS61257540A | Bucket for dredging work | |
| JPS61126226A | Dredging equipment |