The artificial-intelligence boom is rewriting which companies define corporate Japan. The memory-chip maker Kioxia briefly passed Toyota to become the country's

The artificial-intelligence boom is rewriting which companies define corporate Japan. The memory-chip maker Kioxia briefly passed Toyota to become the country's

SoftBank briefly overtook Toyota as Japan's most valuable company for the first time since February 2000. Kioxia went from 154th to top three in a year. Is the AI rally 2000…