EY

Eizaburo Yamada

HI Hitachi: 1 patents #814 of 2,935Top 30%
📍 Tama, JP: #12 of 33 inventorsTop 40%
Overall (1989): #117,307 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4847573 Optical modulator Tadashi Fukuzawa, Kenji Hiruma, Hiroyoshi Matsumura 1989-07-11