Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698614 | Fluorescent ink composition for use in marking pens | Masakazu Yokoi, Yasushi Okuda | 1997-12-16 |
| 5699472 | Motion picture reproducing system by bidirectional communication | — | 1997-12-16 |
| 5671319 | Compression of video and audio signals and expansion of a compressed signal in accordance with an image hf component compression factor | — | 1997-09-23 |