DL

Donsheng Li

HI Hitachi: 1 patents #961 of 2,733Top 40%
HC Hitachi Car Engineering Co.: 1 patents #1 of 19Top 6%
HC Hitachi Industrial Equipment Systems Co.: 1 patents #5 of 71Top 8%
Overall (2011): #313,558 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7919941 Semiconductor power converter Shigehisa Aoyagi, Yoshitaka Iwaji, Kazuaki Tobari, Kiyoshi Sakamoto 2011-04-05