RA

Ryou Akiyama

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
MS Mitsubishi Hitachi Power Systems: 2 patents #298 of 970Top 35%
Overall (All Time): #739,125 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9127569 Shroud structure for gas turbine Yasuo Takahashi, Tetsuro Morisaki, Yasuhiro Horiuchi 2015-09-08
9109461 Axial flow compressor, gas turbine system having the axial flow compressor and method of modifying the axial flow compressor Yasuo Takahashi, Chihiro Myoren, Ichiro Miyoshi 2015-08-18
7320175 Production process of gas turbine Tomomi Koganezawa, Takanori Shibata, Nobuhiro Seiki, Shinya Marushima, Shinichi Higuchi +2 more 2008-01-22
6877324 Gas turbine, gas turbine apparatus, and refrigerant collection method for gas turbine moving blades Shinya Marushima, Manabu Matsumoto, Tsuyoshi Takano 2005-04-12
6865893 Production process of gas turbine Tomomi Koganezawa, Takanori Shibata, Nobuhiro Seiki, Shinya Marushima, Shinichi Higuchi +2 more 2005-03-15
6568192 Gas turbine, gas turbine apparatus, and refrigerant collection method for gas turbine moving blades Shinya Marushima, Manabu Matsumoto, Tsuyoshi Takano 2003-05-27
6405538 Gas turbine, gas turbine apparatus, and refrigerant collection method for gas turbine moving blades Shinya Marushima, Manabu Matsumoto, Tsuyoshi Takano 2002-06-18