Previous answer is
Yasumitsu

Special feature: Yasumitsu was active in early Muromachi period.
It is possible to say that he was a leading sword smith of Ouei Bizen.
Especially the Jigane is so nice. The Katana size swords are few in number.

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Appraisal Quiz #534 (April 13th, 2019)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length :　67.9　cm or 26.73 inches.
Sori :1.9cm or 0.74 inches.
Mekugi : 　2
Width at the hamachi : 2.91　cm or 1.14 inches.
Width at the Kissaki : 2.16 cm or 0.85 inches.
Kasane :　0.60 cm or 0.23 inches.
Shape : The blade is oosuriage and the blade is rather wide and thick with deep sori and long ookissaki style.
Jigane :Itame had well grained with jinie attach strong feeling texture
Hamon :Nie deki kogunome and gunome and togari gunome midare.
Inside of the Hamon consist of sunagashi, and long kinsuji.
Boshi: noter and round shape with a lot of activities
of Kinsuji and hakikake style.

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Answer will be posted at next Appraisal Quiz.

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