Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7574364 | Contents rating method | Yutaka Hasegawa, Shinji Koezuka, Masaya Okura | 2009-08-11 |
| 7567910 | Method of validating entrance to event site | Yutaka Hasegawa, Shinji Koezuka, Masaya Okura | 2009-07-28 |
| 7087829 | Method, system and recording medium for viewing/listening evaluation of musical performance | Yutaka Hasegawa, Shinji Koezuka, Masaya Okura | 2006-08-08 |
| 6583348 | Server for use in rating of music contents | Yutaka Hasegawa, Shinji Koezuka, Masaya Okura | 2003-06-24 |