TO

Toshikazu Okubo

HI Hitachi: 1 patents #961 of 2,733Top 40%
Overall (2011): #141,525 of 364,097Top 40%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7936573 Bi-directional DC-DC converter and control method Tatsumi Yamauchi, Hiroyuki Shoji, Seigou Yukutake 2011-05-03