| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 3 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Republic of Korea | 1 | |
| #5 | Singapore | 1 | |
| #6 | Taiwan | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Toys |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kichijo Hiroshi | 8 |
| #2 | Kichijo Yoshiie | 7 |
| #3 | Kichijyo Hiroshi | 3 |
| #4 | Hiroshi Kichijo | 1 |
| #5 | Yoshiie Kichijo | 1 |
| #6 | Yoshiie Kichijo Hiroshi Kichij | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2010001740A1 | Construction blocks | |
| WO2007136047A1 | Knockdown block | |
| WO2007135800A1 | Knockdown block | |
| EP1642630A1 | Assembled block | |
| CN1757428A | Assembled block | |
| SG38906A1 | Block assembly | |
| EP0621063A1 | Block assembly |