Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7499628 | Enhancing operations of video tape cassette players | Henry C. Yuen, Daniel S. Kwoh, Roy J. Mankovitz, Hing Y. Ngai, Yee Kong Ng +1 more | 2009-03-03 |
| 6701060 | Enhancing operations of video tape cassette players | Henry C. Yuen, Daniel S. Kwoh, Roy J. Mankovitz, Hing Y. Ngai, Yee Kong Ng +1 more | 2004-03-02 |
| 6487362 | Enhancing operations of video tape cassette players | Henry C. Yuen, Daniel S. Kwoh, Roy J. Mankovitz, Hing Y. Ngai | 2002-11-26 |
| 6125231 | Method of adding titles to a directory of television programs recorded on a video tape | Henry C. Yuen, Daniel S. Kwoh, Roy J. Mankovitz, Hing Y. Ngai, Yee Kong Ng +1 more | 2000-09-26 |
| 6091884 | Enhancing operations of video tape cassette players | Henry C. Yuen, Daniel S. Kwoh, Roy J. Mankovitz, Hing Y. Ngai, Yee Kong Ng +1 more | 2000-07-18 |
| 5706145 | Apparatus and methods for audio tape indexing with data signals recorded in the guard band | Hing Y. Ngai | 1998-01-06 |