Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6546490 | Signal transmision method | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Shigeyuki Yoneyama | 2003-04-08 |
| 6516064 | Signal recording apparatus, signal record medium and signal reproducing apparatus | Yoshitomo Osawa, Yoichiro Sako, Isao Kawashima | 2003-02-04 |