YO

Yukio Okamoto

HI Hitachi: 1 patents #311 of 1,214Top 30%
Overall (1982): #21,411 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4333040 Gas discharge display device Eisuke Mitani, Tadao Okabe, Atsushi Sumioka 1982-06-01