FY

Fujio Yamasita

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #1,629,902 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6111460 Vacuum tube differential preamplifier having a transformer with a center tap — 2000-08-29
5880632 Tube amplifier having special configuration with two or more tubes — 1999-03-09
5680074 Tube amplifier having specific configuration with four tubes — 1997-10-21