| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 5 | |
| #2 | China | 4 | |
| #3 | United States | 4 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Philippines | 1 | |
| #6 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Textiles and paper | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Venting or aerating devices | |
| #3 | Making paper containers | |
| #4 | Unspecified technologies | |
| #5 | Certain plastics | |
| #6 | Making paper goods | |
| #7 | Layered products | |
| #8 | Shaping of plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koyanagi Yoshihumi | 9 |
| #2 | Koyanagi Yoshihiro | 6 |
| #3 | Yoshihiro Koyanagi | 1 |
| #4 | Nakano Katsumi | 1 |
| #5 | Yoshifumi Koyanagi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2021033346A1 | Sealed body | |
| WO2021074983A1 | Expansion sheet body, package, and packaging method | |
| WO2019009139A1 | Closing valve made of sheet and bag with closing valve | |
| EP2829390A1 | Processing method and processing device for container body sheet | |
| US7249612B2 | Mounting structure of an open/close valve in a sealed body |