CHINA VISA 144hrs exemption

We are US citizens.
We will arrive to Shanghai from US on OCtober 20,2019.
On October 22, taking the cruise to Japan Nagasaki.
On October 27, come back to Shanghai from Kagoshima Japan.
On October 29, leaving Shanghai to Kyoto Japan and November 02 go back to US.
Our itinerary : US- Shanghai-Japan Nagasaki
Japan Kagoshima - Shanghai - Japan Kyoto - US.
Are we eligible for 144hrs visa transit.

Thanks