Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7224799 | Digital watermarking device, digital watermark insertion method and digital watermark detection method | — | 2007-05-29 |
| 6965642 | Method and device for compressing and decompressing moving image data and information recording medium | — | 2005-11-15 |
| 6072367 | Electronic balance adjusting circuit | — | 2000-06-06 |
| 4587438 | Turn-off circuit for gate turn-off thyristor | Koichi Murakami | 1986-05-06 |