MI

Mitsufumi Iwanaka

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
Overall (All Time): #2,130,413 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7859105 Power converter, power system provided with same, and mobile body Kinya Nakatsu, Koichi Yahata, Masato Takahashi, Ryuichi Saito, Haruki Hamada 2010-12-28
5115386 Circuit for controlling an electric power supply apparatus, a method therefor and an uninterruptible power supply Hidefumi Shirahama, Ikuo Yamato, Norikazu Tokunaga, Yasuo Matsuda, Takeshi Nagano +1 more 1992-05-19