| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 3 | |
| #3 | Germany | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | Italy | 3 | |
| #6 | Canada | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Computer technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Watabe Takaharu | 12 |
| #2 | Watabe Takaji | 3 |
| #3 | Takaharu Watabe | 2 |
| #4 | Katagiri Takashi | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5333356A | Assembly for controlling turn of a hinge pivot | |
| US4763384A | Door closer and check | |
| AU4800085A | Hinge | |
| US4660251A | Hinge-type lid mounting device | |
| AU1769883A | Door closing apparatus | |
| IT8320169D0 | Closure retaining device | |
| DE3309359A1 | Snap catch | |
| GB8305132D0 | Closure retaining devices | |
| US4513474A | Wedge hinge having an axially movable pivot |