I see a Hirotsugu listed in Sesko's index as jo-saku
HIROTSUGU (広次), 3rd gen., Bunmei (文明, 1469-1487), Sagami – “Sōshū-jū Hirotsugu” (相州住広次),
“Hirotsugu” (広次), “Sōshū-jū Hirotsugu saku” (相州住広次作), real name Ichikawa Chōbei (市川長兵衛), it is said
that he enjoyed a very long life and that he was still working in the Eishō era (永正, 1504-1521), ō-gunome-midare, gunome-
chōji, some blades show horimono, jō-saku