SO

Shuhei Okada

HM Hitachi Maxell: 2 patents #441 of 1,211Top 40%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
YE Yokogawa Electric: 1 patents #658 of 1,441Top 50%
📍 Toyonaka, JP: #340 of 1,166 inventorsTop 30%
Overall (All Time): #1,222,894 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8878549 AC impedance measuring device Hirofumi Nakanishi 2014-11-04
6608460 Method of driving head, head driving device and disc driving apparatus using the same method and device 2003-08-19
4392170 Magnetic recording disc cartridge with disc cleaning means 1983-07-05
4230225 Storage container for recording tape cartridge Masana Uozumi, Masanori Matsuura, Masazumi Sadaike 1980-10-28