| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | Republic of Korea | 2 | |
| #4 | Taiwan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Iwago Shunji | 9 |
| #2 | Iwago Hayao | 9 |
| #3 | Uchida Masayoshi | 8 |
| #4 | Shunji Iwago | 3 |
| #5 | Hayao Iwago | 3 |
| #6 | Masayoshi Uchida | 3 |
| #7 | Utida Masayoshi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN103669588A | Steel-framed structure manufacturing method | |
| CN103669587A | Steel-framed structure manufacturing method | |
| TW201311977A | Methods of making steel bones | |
| TW201239166A | Methods of making steel bones | |
| WO2011093533A1 | Continuous minor steel beam structure | |
| KR20110098713A | Column-beam connection structure |