KM

Katsuo Motosaka

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #2,360,276 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4483656 Vortex blower Masahiro Abe 1984-11-20
4247246 Vortex blower Masahiro Abe, Toshiaki Sumi 1981-01-27