Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5986855 | Head drum assembly having an oilless bearing designed to facilitate its installation within the same | — | 1999-11-16 |
| 5982589 | Head drum assembly for use in a video cassette recorder | — | 1999-11-09 |
| 5808842 | Head drum assembly for use in a magnetic recording/reproducing apparatus | — | 1998-09-15 |
| 5734213 | Head drum assembly for use in a video cassette recorder | — | 1998-03-31 |
| 5715112 | Apparatus for adjusting a gap between transformers in a tape recorder | — | 1998-02-03 |
| 5677816 | Head drum assembly for use in a video cassette recorder | — | 1997-10-14 |