2015
The first edition of JR Tokai sign manual for Central Japan railway was published in 1988 and repeated its impression around every 3 years then the six edition was published in March 2014. For JR West sign manual, it has been repeating the impression since 1996 then the five edition was published in March 2015. The current Keikyu sign manual is the second edition which was published in 2013.
