Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6937553 | Recorder for recording copy of production on the basis of copy attribute embedded as electronic watermark in the production, reproducing device for reproducing recorded copy, recorded medium, recording method, and reproducing method | Hideshi Ishihara | 2005-08-30 |
| 6618396 | Data transmitting device, data receiving device, and data recording device | Satoshi Kondo, Akiyoshi Maeda, Hiroyuki Uenaka, Hiromu Kitaura, Hidetoshi Takeda | 2003-09-09 |
| 5850382 | Optical disk having a rewritable area and a read-only area | Kenji Koishi, Shunji Ohara, Takashi Ishida, Isao Satoh, Yoshinari Takemura +2 more | 1998-12-15 |