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Norio Akai

HM Hitachi Maxell: 2 patents #441 of 1,211Top 40%
📍 Ibaraki, JP: #3,280 of 6,779 inventorsTop 50%
Overall (All Time): #2,306,606 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5082728 Magnetic disc Akira Miyake, Tomizo Taniguchi 1992-01-21
4803584 Disk cartridge with cleaning sheet of non-woven fabric Hajime Doi, Fujio Matsumoto 1989-02-07