On July 2018, I've become a Java Champion! I was very happy to hear that. My name is published at Java Champion web page.
https://community.oracle.com/docs/DOC-925803
Koichi is a leader and a founder of a Japanese JUG, called KanJava He is enthusiastic about the JVM!
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Koichi continues to lead the Java community and Java engineers in Japan. Especially he shares his experience of interaction with global JUGs and Java champions with Japanese engineers.