Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D510956 | Mask for a display unit and display unit for an electronic display board | Akiko Yamamoto | 2005-10-25 |
| D506510 | Mask for a display unit and display unit for an electronic display board | Akiko Yamamoto | 2005-06-21 |
| D503745 | Mask for a display unit and display unit for an electronic display board | Akiko Yamamoto | 2005-04-05 |