Date	March 5 (Tue.) - March 8 (Fri.), 2019
Location	Tokyo Big Sight
URL	https://messe.nikkei.co.jp/en/lf/

Date	Mar. 9(Sat.) -- 12(Tue.)
Location	Tokyo Institute of Technology
URL	https://meeting.jsap.or.jp/english/

Date	Apr. 24(Wed.) -- 26(Fri.)
Location	Pacifico Yokohama
URL	http://www.opie.jp/en/index.php