| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Audio-visual technology | |
| #3 | Semiconductors | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Nonlinear optics | |
| #2 | Photomechanical semiconductor production | |
| #3 | Display controls | |
| #4 | Semiconductor devices | |
| #5 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nakagawa Hidetoshi | 14 |
| #2 | Tsubata Toshihide | 1 |
| #3 | Hisada Yuhko | 1 |
| #4 | Nagashima Nobuyoshi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH11336114A | Fitting mechanism of attachment member to earth-moving machine such as power shovel |