AK

Atuhiro Kumagai

SO Sony: 1 patents #128 of 577Top 25%
Overall (1989): #130,511 of 140,708Top 95%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4802034 Tape loading device with variable tape tension mechanism for recording reproducing apparatus Yoshiharu Matsumoto, Shuichi Ota 1989-01-31