Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771955 | Function limiting method for telephone communication terminal, telephone communication method, telephone communication terminal and repeating center equipment | Shigeru Imura | 2004-08-03 |
| 5732349 | System and method for controlling a portable telephone according to discriminated area code | Shigeru Imura | 1998-03-24 |