| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 9 | |
| #2 | EPO (European Patent Office) | 1 | |
| #3 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Chairs and beds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kashima Hiroshi | 11 |
| #2 | Kashima Osamu | 8 |
| Publication | Filing date | Title |
|---|---|---|
| WO9312695A1 | Sofa bed | |
| JPH06178712A | Bed also serving as sofa | |
| JPH05237020A | Bed to be used as sofa | |
| JPH06178713A | Bed also serving as sofa | |
| JPH05199924A | Bed combined with sofa and method for its use | |
| JPH0624437A | Versatile book-folding case | |
| JPH06197823A | Bed usable as sofa | |
| JPH04187108A | Sofa bed with bedclothes-storing device | |
| JPS56155302A | Feed water preheater for boiler | |
| JPS56138641A | Preheating device for supplied water for hot water boiler |