Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5834670 | Karaoke apparatus, speech reproducing apparatus, and recorded medium used therefor | Takeshi Yumura, Hiroki Ohnishi, Masanori Miyatake, Masashi Ochiiwa, Takashi Izumi | 1998-11-10 |