The unmanned Japanese H-II cargo vehicle, called Kounotori,
supplies the "Kibo" (Japanese Exeperiment Module) that was carried
to the ISS between 2008 and 2009 aboard the Space Shuttle.
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W. H. Willcockson has written:
'Orbital transfer vehicle concept definition and system analysis
study' -- subject(s): Orbital transfer (Space flight), Space
vehicles, Space flight to Mars
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The H-2B rocket and the Japanese H-2 transfer vehicle resupplied
the International Space Station. Super-cold liquid hydrogen and
liquid oxygen supplies the rocket's two LE-7A first stage engines
and the LE-5B engine.