| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | China | 3 | |
| #3 | United States | 3 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Foundations and excavations | |
| #3 | Frames |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nakaniwa Kazuhide | 12 |
| #2 | Abe Yukio | 2 |
| #3 | Kazuhide Nakaniwa | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN101263362A | Optical device, and method of measuring the dimension of object using optical device |