| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 | |
| #2 | Japan | 6 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Semiconductors | |
| #3 | Environmental technology | |
| #4 | Machines | |
| #5 | Mechanical elements | |
| #6 | Transport | |
| #7 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hata Toshio | 20 |
| #2 | Uemura Toyonori | 4 |
| #3 | Ishizaki Shinya | 4 |
| #4 | Agatani Makoto | 3 |
| #5 | Matsushita Hitoshi | 2 |
| #6 | Aoki Nobuaki | 2 |
| #7 | Ito Masayuki | 2 |
| #8 | Osaki Shinji | 2 |
| #9 | Miyata Masataka | 1 |
| #10 | Sakurada Susumu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPS59409A | Floating breakwater restricted rocking movement | |
| JPS5454427A | Floating wave damping bank | |
| JPS53100638A | Wave dissipation bank and method of construction same | |
| US4259027A | Constant torque ball joint | |
| JPS51145140A | Trusssstructure fixed breakwater | |
| JPS51145139A | Anchoring device for floating breakwater | |
| US3944376A | Constant torque ball joint |