| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 12 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Bolts for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hiroaki Kubo | 3 |
| #2 | Yuichi Nozaki | 2 |
| #3 | Yoshinori Ishiguro | 2 |
| #4 | Shima Shumpei | 1 |
| #5 | Hironami Kubo | 1 |
| #6 | Takeshi Fujii | 1 |
| #7 | Sachiko Nojima | 1 |
| #8 | Iwasa Kazuki | 1 |
| #9 | Ishiguro Yoshinori | 1 |
| #10 | Hase Hideki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN111980506A | Opening angle retaining device and door and window | |
| CN102454681A | Connecting ring | |
| CN1541784A | Method and apparatus for cooling extruded material | |
| CN1421590A | Union window frame |