NK

Noboru Keitoku

Pioneer Electronic: 5 patents #387 of 1,840Top 25%
Pioneer: 2 patents #761 of 1,730Top 45%
Overall (All Time): #768,179 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5036188 Remote-control-light detecting device for AV apparatus 1991-07-30
D295741 Speaker 1988-05-17
D292091 Speaker 1987-09-29
D291080 Loudspeaker Akira Katsuno 1987-07-28
D290000 Video disc player Juichi Yamamoto, Kazuhiko Kawano, Toru Tsunetsugu, Shuji Natori 1987-05-26
D266508 Tuner Jun Yamamoto, Toshihito Nomura 1982-10-12
D266511 Amplifier Jun Yamamoto 1982-10-12