Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6208840 | Handy phone with an infrared communication capability | — | 2001-03-27 |
| 5950138 | Hand-held telephone set | — | 1999-09-07 |
| 5894599 | Mobile station with a function which enables a user to easily recognize a current position | Takeshi Ishida | 1999-04-13 |
| 5842121 | Power supply unit with switch-on/off facility for powering radio equipment | — | 1998-11-24 |
| 5819170 | Power supply unit with switch-on/off facility for powering radio equipment | — | 1998-10-06 |
| 5732348 | Cellular telephone set capable of automatically selecting a control channel without switching operational modes from one to another | — | 1998-03-24 |
| 5621785 | Portable telephone set transmitting area identification signal indicative of a radio zone occupied thereby | — | 1997-04-15 |
| 5615248 | Telephone apparatus having automatic display function | — | 1997-03-25 |
| 5613202 | Mobile station with function which enables a user to easily recognize a current position | Takeshi Ishida | 1997-03-18 |
| 5475739 | Radio telephone apparatus having automatic answering function for confidential messages | — | 1995-12-12 |
| 5467392 | Dialing apparatus for displaying stored character with reduced key operations | — | 1995-11-14 |
| 5438612 | Radio telephone apparatus having call limiting function | — | 1995-08-01 |