KH

Kazuhiko Hiraoka

HI Hitachi: 1 patents #867 of 2,942Top 30%
Overall (1997): #123,331 of 185,788Top 70%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5694858 Railway vehicle with micro pressure wave reducing contour for tunnel travel Iwao Harada, Morishige Hattori, Hideshi Ooba 1997-12-09