Issued Patents 1989
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882744 | Automatic paging system | — | 1989-11-21 |
| 4878243 | Call forwarding system and method | — | 1989-10-31 |
| 4876707 | Two-directional call forwarding device | — | 1989-10-24 |
| 4873584 | Computer control for VCR including display of record playback listing and playback order selection | — | 1989-10-10 |
| 4866754 | Automatic telephone answering machine utilizing voice synthesis | — | 1989-09-12 |
| 4866755 | Multiple language telephone answering machine | — | 1989-09-12 |
| 4860134 | Double video cassette tape recorder | — | 1989-08-22 |
| 4856053 | Telephone terminal equipment having means for preventing malicious and nuisance transmission | — | 1989-08-08 |
| 4850005 | Telephone answering device with artificial intelligence | — | 1989-07-18 |
| 4849740 | Safety device for a sheet cutter apparatus | — | 1989-07-18 |
| 4837803 | Telephone answering device having function of playback without rewinding tape | — | 1989-06-06 |
| 4837809 | Telephone answering device having immediate playback function | — | 1989-06-06 |
| 4833704 | Automatic telephone answering and recording device with automatic two-way conversation recording function controlled by off/on hook detector | — | 1989-05-23 |
| 4831646 | Automatic telephone answering device for automatically setting standby mode | — | 1989-05-16 |
| 4829555 | TAD incorporated with VCR | — | 1989-05-09 |
| 4829557 | Telephone answering device having outgoing message pause timer function | — | 1989-05-09 |
| 4829556 | Telephone answering device having telephone answering and conversation recording modes of operation | — | 1989-05-09 |
| 4821311 | Automatic telephone answering/recording device of digital type | — | 1989-04-11 |
| 4821308 | Telephone answering system with paging function | — | 1989-04-11 |
| 4817128 | Easily operable automatic telephone answering/recording apparatus and method of operating the same | — | 1989-03-28 |
| 4814905 | Portable sound recorder and playback device with battery saving feature using a switch controlled timer | — | 1989-03-21 |
| 4813068 | Easily operable automatic telephone answering/recording apparatus | — | 1989-03-14 |
| 4813067 | Apparatus for connecting selectively a telephone answering device or additional equipment, such as a facsimile machine, to telephone lines | — | 1989-03-14 |
| 4811383 | Message exchange device for communication between a manager and particular persons | — | 1989-03-07 |
| 4805204 | Automatic telephone apparatus and set-up method therefor | — | 1989-02-14 |