FR

Fumio Rokkaku

RO Roland: 3 patents #78 of 292Top 30%
Overall (All Time): #1,657,865 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5270476 Electronic musical instrument Takenori Yamamori, Satoshi Otsuka, Mitsuhiro Umeta, Minoru Fujisawa 1993-12-14
5212676 Performance information recording/reproducing apparatus having correction techniques using event and state information Toshio Yamabata, Satoshi Otsuka, Mitsuhiro Umeta, Takenori Yamamori, Minoru Fujisawa +1 more 1993-05-18
5074185 Envelope-generating apparatus in electronic musical instrument Masashi Nishikawa, Satoshi Otsuka, Mitsuhiro Umeta 1991-12-24