Operator is industrial company Sankyu KK
http://www.sankyu.co.jp/
http://www.sankyu.co.jp/en/business/ls.html

and here's their own ship: https://www.youtube.com/watch?v=XBryvWA-bDI

It seems that "Daiichi" means "No 1".
I think that this one is DAIEI MARU No 1
Same company as DAIEI MARU No 11 (anad with similar container loads) at http://www.shipspotting.com/gallery/photo.php?lid=2049897 (That's another that lacks details in usual sources).

So MAY be IMO 9790476
general cargo, 498gt 1350dwt
built 2014 Tokuoka Zosen KK, Naruto
Otsu Kaiun YK, Anan
Official No 142248, c/s JD3741

Bob, did you take any other pics - the bridge front should have a board, including the Official Number and/or call sign

I have asked a Japanese acquaintance if he could provide a name for this ship.
His reply:
1st character - Dai
2nd character - Ichi
3rd character - Dai
4th character - ? (unreadable)
5th character - Maru

Maybe this much will help someone to provide the full name of this ship?

David Ford

Maybe the same builder. The logo on the funnel do not look like the Imoto Line's. Lets hope that a japanse reader will be able to translate the name on the stern.