| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Brazil | 1 | |
| #4 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Milling | |
| #3 | Climate change mitigation in wastewater treatment | |
| #4 | Climate change adaptation technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ishioka Makoto | 6 |
| #2 | Ito Katsumori | 6 |
| #3 | Ito Katsuhiro | 4 |
| #4 | Takada Tatsuyuki | 1 |
| #5 | Ito Tatsuo | 1 |
| #6 | Omotedera Kazumasa | 1 |
| #7 | Komata Takayuki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2018003551A | Sieve structure | |
| WO2011145233A1 | Bucket jaw crusher | |
| JP2010042335A | Attachment for falling weight type crushing | |
| JP2008013840A | Impact-resistant head | |
| JP2007275734A | Crusher | |
| JPH04317484A | Production of manure |