YK

Yoshitake Kato

HM Hitachi Maxell: 7 patents #1 of 102Top 1%
Overall (1989): #882 of 140,708Top 1%
7
Patents 1989

Issued Patents 1989

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
4885653 Disk cartridge with a hub having an outsert molded control ring 1989-12-05
4868701 Recording disc assembly 1989-09-19
4851947 Improved disk cartridge including a shutter for opening and closing head entry apertures 1989-07-25
4851948 Disk cartridge with shutter biasing device Minoru Fujita 1989-07-25
4849844 Disk cartridge 1989-07-18
4839766 Disk cartridge with improved shutter moving mechanism 1989-06-13
4831478 Disc drive assembly for supporting a recording disc Hiroshi Maruyama 1989-05-16