Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7720210 | CTI system | — | 2010-05-18 |
| 7711827 | Communication system, communication server and communication method | — | 2010-05-04 |
| 6434224 | Communication system capable of displaying addresser information and method for displaying addresser-related information | Kazuyoshi Iijima | 2002-08-13 |
| 4748630 | Optical memory device comprising a semiconductor laser having bistability and two injection current sources for individually controlling the bistability | — | 1988-05-31 |
| 4608682 | Optical time-division switching system employing optical bistable devices | Michikazu Kondo | 1986-08-26 |
| 4490580 | Subscriber line circuit comprising a controllable DC/DC converter as a battery feed circuit | — | 1984-12-25 |