A new set of cubesats will be released tomorrow, December 19th, 2016.
For the deployment, the Japanese robotic arm moves the deployer to a specific position to ensure the satellites depart on a safe trajectory with no risk of re-contact with ISS on any subsequent orbits after which drag will have separated ISS and the much smaller CubeSats.
Here is a list of the CubeSats on Japan’s payload manifest, with descriptions offered by JAXA :
AOBA-Velox 3 – from the Kyushu Institute of Technology in Japan and the Nanyang Technological University in Singapore, will evaluate the performance of a pulsed plasma thruster
TuPOD – from the Italian company GAUSS, will attempt deployment of two daughter nanosatellites from Brazilian and U.S. builders
ITF-2 – from the University of Tsukuba, will connect amateur radio users
STARS-C – from Shizuoka University, will attempt to extend a tether between two 1U CubeSats
WASEDA-SAT 3 – from Waseda University, will also deploy a “film-type” de-orbiting device and project an image onto the film surface using a micro-miniature projector