HK

Hiroyuki Kumagai

NASA: 1 patents #31 of 167Top 20%
📍 Tokyo, CA: #91 of 163 inventorsTop 60%
Overall (1997): #141,644 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5691687 Contactless magnetic slip ring Joe D. Deardon 1997-11-25