Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5859752 | Head drum assembly of a video cassette recorder | — | 1999-01-12 |
| 5764443 | Rotary transformer with flexible printed circuit boards | — | 1998-06-09 |
| 5687043 | Head drum assembly for use in a video cassette recorder | — | 1997-11-11 |
| 5666245 | Head drum assembly provided with an amplifier therein | — | 1997-09-09 |