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Osamu Koizumi

3M: 1 patents #132 of 563Top 25%
SO Sony: 1 patents #128 of 577Top 25%
Overall (1989): #71,927 of 140,708Top 55%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4879621 Disk restraint Davis W. Chamberlin, Vurnen J. Leonard 1989-11-07