KK

Keiko Kitagawa

SO Sony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,296,029 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5334022 Auditory playing device Shiro Yasuda 1994-08-02
4903130 Broadcast satellite receiver Osamu Yamakami 1990-02-20