Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7139563 | Portable telephone set with interference detecting and warning function displayed with indication of type of radio interference fault | — | 2006-11-21 |
| 6934538 | Portable telephone set for detecting radio wave interference on switched perch channels and displaying interference warning | — | 2005-08-23 |
| 6896182 | Card verification system and card verification method | — | 2005-05-24 |
| 5983103 | Location registration inhibition control apparatus for mobile radio telephone and its method thereof | — | 1999-11-09 |
| 5511237 | Digital portable telephone apparatus with holding function and holding tone transmission method therefor | — | 1996-04-23 |