Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720846 | Automatic telephone answering and recording apparatus | — | 1988-01-19 |
| 4620065 | Automatic telephone answering and recording apparatus | Hideyasu Ishigo | 1986-10-28 |
| 4571457 | Automatic telephone answering and recording apparatus | Hideyasu Ishigo | 1986-02-18 |
| 4514593 | Automatic telephone answering and recording apparatus | Hideyasu Ishigo | 1985-04-30 |
| 4456385 | Interpolating time set apparatus | — | 1984-06-26 |