Masatake Iwasaki is a Software Engineer at NTT DATA CORPORATION, providing technical consultation for open source softwares such as Hadoop, HBase, and PostgreSQL.
Tatsuya Kawano is an HBase contributor and evangelist in Japan. He has been helping the Japanese Hadoop and HBase community to grow since 2010.
He is currently working for Gemini Mobile Technologies as a Research & Development software engineer. He is also developing Cloudian, a fully S3 API-complaint cloud storage platform, and Hibari DB, an open source, distributed, key-value store.
He has co-authored a Japanese book named "Basic Knowledge of NOSQL" in 2012, which introduces 16 NoSQL products, such as HBase, Cassandra, Riak, MongoDB, and Neo4j to novice readers.
He has studied graphic design in New York, in the late 1990s. He loves playing with 3D computer graphics as much as he loves developing high-availability, scalable, storage systems.
Michael Morello holds a Masters degree in Distributed Computing and Artificial Intelligence. He is a Senior Java/JEE Developer with a strong Unix and Linux background. His areas of research are mostly related to large-scale systems and emerging technologies dedicated to solving scalability, performance, and high availability issues.
Shinichi Yamashita is a Chief Engineer at the OSS Professional Service unit in NTT DATA Corporation, in Japan. He has more than 7 years of experience in software and middleware (Apache, Tomcat, PostgreSQL, Hadoop eco system) engineering.
Shinicha has written a few books on Hadoop in Japan.