Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D577393 | Toy building block | Hiroshi Kamikawa | 2008-09-23 |
| 6485060 | Plastic folder for retaining sheets of paper | Katsuyuki Tono | 2002-11-26 |
| D458633 | Clear cover file | Katsuyuki Tono | 2002-06-11 |