YI

Yuuzaburo Inoue

NT NTT: 1 patents #2,911 of 4,871Top 60%
Overall (All Time): #2,322,566 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4910482 AC line filter Kusuo Takagai 1990-03-20
4835497 AC line filter Kusuo Takagi 1989-05-30