KM

Kazuo Murayama

SO Sony: 4 patents #8,966 of 25,231Top 40%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #1,031,831 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7171015 Speaker apparatus Kazuyuki Suda 2007-01-30
6185060 Changeover circuit in tape recorder Kazuyuki Suda 2001-02-06
6141425 Sound quality adjustment circuit Toshiya Murakami 2000-10-31
5208513 Monitoring circuit for a light emission device 1993-05-04
4636878 Combined detector circuit for detecting a tape end or unrecorded area of a tape 1987-01-13