Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5544147 | Disk reproducing apparatus | Satoru Koizumi, Yoshihiro Abe, Kazuki Matsuzaki | 1996-08-06 |
| 4783709 | Magnetic head supporting mechanism for tape recorder | Satoru Koizumi | 1988-11-08 |