Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231619 | Optical disk apparatus having improved tracking servo mechanism | — | 1993-07-27 |
| 4602578 | Workpiece feed device in sewing machine | Masaaki Yokoe, Humio Nakanishi | 1986-07-29 |