https://docs.lib.purdue.edu/icec/1577/
" Performance Investigation With Oil-Injection to Compression Chambers " by A. Hiwata, N. Iida et...
By A. Hiwata, N. Iida, Y. Futagami, et al., Published on 01/01/02
https://docs.lib.purdue.edu/icec/1646/
"New Thrust Bearing Groove to Control the Overturning for CO2 Scroll Co" by Akira Hiwata, Yoshiyuki...
By Akira Hiwata, Yoshiyuki Futagami, Takashi Morimoto, et al., Published on 01/01/04
https://docs.lib.purdue.edu/icec/1849/
"Axial and Radial Force Control for CO2 Scroll Expander" by Akira Hiwata, Akira Ikeda et al.
By Akira Hiwata, Akira Ikeda, Takashi Morimoto, et al., Published on 01/01/08