OA

Osamu Arai

HI Hitachi: 1 patents #814 of 2,935Top 30%
📍 Tochigi, JP: #23 of 113 inventorsTop 25%
Overall (1989): #71,997 of 140,708Top 55%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4829764 Combustion air flow rate adjusting device for gas turbine combustor Nobuyuki Iizuka, Katsukuni Hisano, Katsuo Wada, Fumiyuki Hirose 1989-05-16