Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879613 | Cassette tape recorder for multiple cassette tapes | Satoru Koizumi, Daisuke Teshima | 1989-11-07 |
| 4843492 | Automatic cassette tape recorder stop mechanism for use with a plurality of tapes | Satoru Koizumi, Daisuke Teshima | 1989-06-27 |
| 4809098 | Tape cassette loading device | Satoru Koizumi, Daisuke Teshima | 1989-02-28 |
| 4807058 | Tape recorder including device to prevent improper operation of recording operation | Satoru Koizumi, Daisuke Teshima | 1989-02-21 |
| 4797759 | Tape recorder mode selector device for plural cassette tapes | Satoru Koizumi, Daisuke Teshima | 1989-01-10 |