RK

Ryoei Katsura

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
Overall (All Time): #3,992,623 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4578154 Method and apparatus for measuring dissolved gas concentrations Masao Kitamura, Norio Nakayama, Hidefumi Ibe, Shunsuke Uchida 1986-03-25