Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6631241 | Recording medium for which a sub-picture can be favorably superimposed on a main image, and a reproduction apparatus and a reproduction method for the recording medium | Kazuhiko Yamauchi, Kaoru Murase, Masayuki Kozuka, Shinichi Saeki | 2003-10-07 |
| 6553179 | Optical disc for coordinating the use of special reproduction functions and a reproduction device for the optical disc | Masayuki Kozuka, Kazuhiro Tsuga, Kaoru Murase, Kazuhiko Yamauchi, Yoshihisa Fukushima | 2003-04-22 |