Previous answer is
Mutsu Daijyo Miyoshi Nagamichi

Special feature : He was a son of the Miyoshi Masanaga and called Toshiro and born at Kanei 10th(1633) at Aizu province.
He studied making swords from his uncle Nagatoshi after that he got the title of Mutsu Daijyo (Manji 2nd year)and changed his name to Miyoshi Nagamichi.
He passed away Teikyo 2nd era age 55 years.
Nagamichi adore Kotetsu and his work is qute sama as Kotetsu.
The blade is bright and good Jigane with deep nioikuchi and boshi is also same style like a head of snake.
He was selected as 13 famous best cut well swords as sama as Kotetsu.
He moved to Edo and studied from Yamano Kanjyuro Hisahide in order to make cut well sword.
In fact, there are some Tameshigiri gold inlay swords of Nagamichi.
This blade is very bright Hamon and good Jigane.
From the hamachi area, Kotegane appear(small lose hada) like Kotets habit.

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Appraisal Quiz #233 (March 1, 2013)
Who made this sword do you think ?
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hints. ※The picture will be enlarged

Katana
Blade length : 64.2 cm or 25.27 inches.
Sori : 1.5 cm or 0.59 inches.
Mekugi : 1
Width at the hamachi : 3.37 cm or 1.32 inches.
Width at the Kissaki : 2.58 cm or 1.01 inches.
Kasane : 0.76 cm or 0.29 inches.
Era : About late Edo period.
Shape : The blade is wide(3,37) and thico with long kissaki .
The moot side is Katakiri way and opposite side is regular Shinogo zukuri style unusual marvelous shape.
Jitetsu : Koitame had well grained with jinie attach.
Hamon : Niedeki gunome midair with very thick nioikuchi and sunagashi and also Kinsuji work.
Boshi is gunome midair and kissaki is turns back.

Hint
1:This wordsmith continued several generation.
2:The blade is Very thick nioikuchi gunome midair hamon.
3:Generally good shape.
4:Sometimes we can see cutting test and Gassaku mei.
5:Generally the hamon is very deep nioikuchi which is called sodden bizen style.

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