NU

Nobuhiro Umebayashi

HM Hitachi Maxell: 2 patents #2 of 69Top 3%
📍 Yuki, JP: #1 of 4 inventorsTop 25%
Overall (1994): #23,620 of 165,921Top 15%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5355270 Magnetic recording medium having a reference track structure for improved optical tracking Kazuya Fukunaga 1994-10-11
5319507 Recording/reproducing system using a flexible magnetic disk Kazuya Fukunaga, Mikio Kishimoto, Norio Ohta 1994-06-07