SA

Shigeo Aoyama

HM Hitachi Maxell: 1 patents #26 of 102Top 30%
📍 Ibaraki, JP: #110 of 447 inventorsTop 25%
Overall (1989): #58,179 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4830923 Magnetic recording medium Kenji Sumiya, Yoshinori Yamamoto, Yoji Takeuchi 1989-05-16