Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6687211 | Information record medium on which audio information differing in recording methods are recorded and apparatus for reproducing the same | Takao Sawabe, Kaoru Yamamoto, Hidehiro Ishii, Shozo Ema, Tokihiro Takahashi | 2004-02-03 |