If you want to stretch your definition of punk I've got some good Japanese grindcore.
Hmm, actually the 50 Kaitens is a great Japanese punk band. Envy is another good band I can think of but they're screamo so they might not be to everyone's taste.
I don't think I know any "Street Punk" from Japan, but I do know quite a few Japanese Punk Bands
G.I.S.M.
Spoiler:
Aburadako
Casbah
War Painted City Indian
The Clay
The Comes
Crow
The Execute
Framtid
G-Zet
Gas
Gastunk
Ghoul
Inu
Kuro
Kyah
Laughin Nose
Lip Cream
Molugu
Nurse
Rose Rose
Samurai
S.O.B.
SS
The Willard
Zoe
The Stalin