Previous answer is
Mumei (Den Osafune Sigezane)

Special feature : Bizen koku Osafune school Shigezane is said to be the younger brother of Motoshige.
He has made sword from Kareki to Enpo era(1326-1360).
And he was called Sahe-i, and he became a Sadamune’s student in Soshu province.
There are flows of Itame hada. There is a cut trace.

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Appraisal Quiz #377 (March 4th, 2016)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length :　49.3　cm or 19.40 inches.
Sori : 1.0 cm or 0.39 inches.
Mekugi : 　1
Width at the hamachi : 2.98 cm or 1.17 inches.
Width at the Kissaki : 2.26 cm or 0.88 inches.
Kasane : 0.68 cm or 0.26 inches.
Shape : Wide and thick blade. The Kissaki is long.
Jigane : Ko-Itame Hada well grained with Jinie attach.
This is strong Jigane.
Hamon : Nie Deki, Gunome Midare with thick Nioikuchi.
The Ashi is wide. Boshi is pinched and round shape with thick Nioikuchi.

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