YI

Yoshitaka Iwaji

HI Hitachi: 2 patents #436 of 2,733Top 20%
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): #56,544 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8044618 Control apparatus for AC motor Junnosuke Nakatsugawa, Kazuaki Tobari, Kiyoshi Sakamoto 2011-10-25
7919941 Semiconductor power converter Shigehisa Aoyagi, Kazuaki Tobari, Kiyoshi Sakamoto, Donsheng Li 2011-04-05