"Takkyubin service"
Kuroneko yamato. They keep buggege one week.
Nihon youbin.Usually twelve days.
But, Your accomodation don't hesitate to receive and keep your snowboard.
Tell them expected time of arrival.
"Overnight"
Tokyo to Nagano.
There is no overnight train.It takes only one hour and forty minutes by shinkansen.
Tokyo to Kyoto.
no overnight train.overnight highway bus is available.
Ｔokyo to Ｈokkaidou
http://www2.jrhokkaido.co.jp/global/.../ttable/08.pdf
time table