RH

Ryo Hiraga

HI Hitachi: 1 patents #1,533 of 3,950Top 40%
TW The Japan Steel Works: 1 patents #2 of 22Top 10%
Overall (2002): #123,898 of 266,432Top 50%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6419453 Steam turbine rotor shaft Yutaka Fukui, Hiroyuki Doi, Masahiko Arai, Kenichiro Nomura, Toshio Fujita +1 more 2002-07-16