SO

Shigemi Oyama

HC Hitachi Powdered Metals Co.: 1 patents #4 of 13Top 35%
Overall (2004): #115,512 of 270,089Top 45%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6759169 Graphite powder for negative electrode of lithium ion secondary cell and method of production thereof Katsutomo Ohzeki, Minoru Shirahige 2004-07-06