Previous answer is
Hasebe Kuninobu

Special feature : Hasebe Kuninobu was successful in Yamashiro province Kyoto
at Nanbokucho peirod and this katana is qualified as one of 21st Juyo Token Piece.
Hasebe school flourished at Nanbokucho peirod.Hasebe
Kuninobu was a younger brother of the Hasebe Kunishige who was a one of the Hasebe 10tetsu.
They made Tanto mainly and few Katana were made during these days.
This blade is wide and nice Sun-Nobi Tanto style. This blade is typical of Nanbokucho period.
This blade has rare engraving. And also this Nakago is in good condition. The signature is clear.
Please see the Kanto Hibisho(written by Dr. Kunzan) . There are Oshigata and commentary of this blade.

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Appraisal Quiz #313 (October 17th, 2014)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length : 71.0 cm or 27.95 inches.
Sori : 0.8 cm or 0.31 inches.
Mekugi : 2
Width at the hamachi : 3.17 cm or 1.24 inches.
Width at the Kissaki : 2.18 cm or 0.85 inches.
Kasane : 0.68 cm or 0.26 inches.
Shape : The blade is suriage and machiokuri sword with whole signature left.
Jitetsu :Koitame had well grained with jinie attach.
Hamon : Sudareba reach to the shinogi line.

hints
1:Sudareba hamon.
2:Generally the blade has Yakidashi from the Hamachi.
3:The Hamon almost reach to the shinogi line.

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