YH

Yoshihiko Hayashi

HI Hitachi: 1 patents #814 of 2,935Top 30%
Overall (1989): #41,251 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4855970 Time interval measurement apparatus Ritsuro Orihashi 1989-08-08