SY

Shigeru Yumiyama

HI Hitachi: 1 patents #814 of 2,935Top 30%
📍 Hitachinaka, JP: #68 of 240 inventorsTop 30%
Overall (1989): #56,418 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4879486 Permanent-magnet generator used for an ignition device of an internal combustion engine 1989-11-07