Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8050626 | Portable terminal and portable telephone | Tadayoshi Yamamoto | 2011-11-01 |
| 7920828 | Portable terminal, portable telephone and master slave portable telephone system using the portable terminal | Tadayoshi Yamamoto | 2011-04-05 |