DL

Donsheng Li

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HC Hitachi Car Engineering Co.: 1 patents #275 of 465Top 60%
HC Hitachi Industrial Equipment Systems Co.: 1 patents #318 of 550Top 60%
Overall (All Time): #3,246,027 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

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