Also learnt that JAL invested $10M with "option to purchase up to 20 Boom aircraft" in 2017.
Revised specs of the Boom Overture aircraft state operation by 2030, Mach 1.7 max speed, and range of 7,870 km which is enough for Tokyo-Honolulu, but not for Tokyo-LA
https://press.jal.co.jp/en/release/201712/004519.html
Memories of JAL's options on Concorde in the mid-60's & cancellation due to noise & business realities don't seem to have been passed on within the company...so history repeating itself😓