RA

Ryojiro Akiba

TS The Director-General Of The Institute Of Space And Astronautical Science: 1 patents #1 of 4Top 25%
Overall (1997): #82,028 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5694769 Liquid oxidizer immersion type hybrid rocket Nobuhiro Tanatsugu, Masahiro Kohno, Rikio Yokota 1997-12-09