YH

Yasuhiko Hamaya

NE Nec: 1 patents #7,889 of 14,502Top 55%
📍 Toyama, JP: #1,063 of 1,699 inventorsTop 65%
Overall (All Time): #3,818,051 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5189352 Drilling restart control system — 1993-02-23