I can't find anything on YC-07 besides that it's probably a self-propelled crane barge, but the rest:

490t yard oiler YO-37
50t yard lighter YL-10
310t barge YW-22
Murasame-class destroyer Samidare (DD-106)
260t harbor tug YT-65
100t barge YB-102
50t harbor tug YT-88

Not sure about the exact translations of some of these types - the only particularly comprehensive source I can find at the moment for JMSDF-specific hull classification symbols is, oddly enough, the Turkish-language JMSDF Wikipedia page, whose accuracy I don't know.