SS

Shigeo Soejima

NI Ngk Insulators: 3 patents #15 of 149Top 15%
Overall (1989): #7,181 of 140,708Top 6%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4861456 Electrochemical device Syunzo Mase 1989-08-29
4798693 Method of manufacturing an electrochemical device Syunzo Mase 1989-01-17
4797194 Electrochemical element Syunzo Mase 1989-01-10