HM

Hidesuke Miyairi

SO Sony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,328,523 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4805058 Magnetic erasing head Giichi Takeuchi, Masanobu Sato 1989-02-14
4214960 Method of electrolytically etching ferrite Tomio Kobayashi 1980-07-29