#004 Kodama 351
Kodama means "echo." This Bullet Train makes all the stops.
Faster is Hikari "light"; even faster, Nozomi "hope."
Update: Last week, a new Nozomi version went into service. Faster, it shaves the time between Tokyo and Osaka to 2 hours 25 minutes.
The Japan Times says: "JR officials are touting the Type N700 as the fastest bullet train ever. It will travel between Tokyo and Shin-Ōsaka stations in two hours and 25 minutes — five minutes less than before. It will barrel between Tokyo and Hakata [Fukuoka] in four hours and 50 minutes, saving about 10 minutes."