Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722598 | Tape cassette | Yoshitsugu Taki, Yoshihisa Takayama | 2004-04-20 |
| 6680817 | Recording medium device containing recording medium and recording/reproducing device | Yasuaki Kano, Kazuyuki Hirooka, Kazuya Koseki, Masahiro Kiyota, Yoshihisa Takayama +1 more | 2004-01-20 |