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%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7919941	Semiconductor power converter	Shigehisa Aoyagi, Yoshitaka Iwaji, Kazuaki Tobari, Kiyoshi Sakamoto	2011-04-05