MT

Masao Toyosawa

DK Daiichi Kosho: 4 patents #1 of 6Top 20%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #1,048,838 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6139329 Karaoke system and contents storage medium therefor Hiroshi Mino 2000-10-31
6077084 Karaoke system and contents storage medium therefor Hiroshi Mino 2000-06-20
5980261 Karaoke system having host apparatus with customer records Hiroshi Mino 1999-11-09
5900566 Karaoke playback apparatus utilizing digital multi-channel broadcasting Hiroshi Mino 1999-05-04
4646280 Optical disk record player with fast access time 1987-02-24