KK

Kenji Kumasaka

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
HC Hitachi Engineering & Services Co.: 3 patents #2 of 129Top 2%
Overall (All Time): #1,236,439 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7872472 Eddy current testing apparatus and eddy current testing method Yutaka Suzuki, Masahiro Koike, Tetsuya Matsui, Kojirou Kodaira, Katsumi Isaka +4 more 2011-01-18
7841237 Ultrasonic testing apparatus for turbine forks and method thereof Yutaka Suzuki, Masahiro Koike, Tetsuya Matsui, Kojirou Kodaira, Katsumi Isaka +4 more 2010-11-30
7772840 Eddy current testing method Yutaka Suzuki, Masahiro Koike, Tetsuya Matsui, Kojirou Kodaira, Katsumi Isaka +4 more 2010-08-10
4367457 Signal processing apparatus Masaharu Tadauchi 1983-01-04