TO

Tadashi Ohtaka

HI Hitachi: 1 patents #814 of 2,935Top 30%
📍 Hitachinaka, JP: #68 of 240 inventorsTop 30%
Overall (1989): #52,615 of 140,708Top 40%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4866280 Objective lens of an electron beam apparatus — 1989-09-12