RU

Ryoichi Umezawa

CL Copal Company Limited: 1 patents #52 of 139Top 40%
NC Nidec Copal: 1 patents #87 of 172Top 55%
Overall (All Time): #2,028,389 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9024991 Laser marker Tomohisa Ugajin 2015-05-05
4991037 Apparatus for manipulating a magnetic tape cartridge and the magnetic tape contained therewithin Munetaka Shimizu 1991-02-05