Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7295834 | Telephone number display method and set | — | 2007-11-13 |
| 6947763 | Portable telephone having an external memory unit connector | — | 2005-09-20 |
| 6556129 | Selective calling receiver and method of displaying received message data | — | 2003-04-29 |
| 6104303 | Battery detecting device for a radio pager | Tomoshi Sone | 2000-08-15 |
| 6038290 | Selective calling receiver with call number transfer capability | — | 2000-03-14 |
| 6032022 | Individual radio selective calling receiver | — | 2000-02-29 |
| 5933089 | Pager with message display function | — | 1999-08-03 |
| 5821738 | Power supply with single DC/DC converter selectively outputting either of two voltage levels | Kinya Tsuchiyama, Takayasu Ishida | 1998-10-13 |