Previous answer is
Hizen Kuni Dewa Daijyo Yukihiro
Special feature : Yukihiro was a swordsmith of Hizen province.
He was the Second son of Hashimoto Yoshinobu.
Yukihiro got the title of Dewa Daijo in 1648 and ranked up to Dewa (No) Kami in 1663.
He went to Nagasaki to learn under Hisatsugu and Tanenaga who were well informed
about western steels brought by the Dutch. Yukihiro also learned Bizen-den style
under the swordsmith belonged to Ishido School and sometimes added
the character Ichi to his signature. Later he became a retained swordsmith
of the Nabeshima family and lived in Nagase town. He passed away in 1683, aged 66.
The workmanship of this katana with his full of spirit bears a close resemblance to
the early works of O-mi Daijo Fujiwara Masahiro the Second.
In his swords, this sword is interesting ichimonji style by using Japanese Tamahagane.
Appraisal Quiz #365 (December 3rd, 2015)
Who made this sword do you think ?
Hints. ※The picture will be enlarged
Blade length : 61.5 cm or 24.21 inches.
Sori : 2.55 cm or 1.00 inches.
Mekugi : 3
Width at the hamachi : 3.53 cm or 1.38 inches.
Width at the Kissaki : 2.71 cm or 1.06 inches.
Kasane : 0.72 cm or 0.28 inches.
Shape : The blade is wide and thisk with deep sori and long kissaki nice looking shape.
On the Jigane, a doragon and Dokko Ken are engraved deep horimono.
Jitetsu :Koitame hada well grsined with jinie attach beautiful Oosaka texture.
Hamon : Niedeki deep nioikuchi gunone midare and Doranba hamon and sunagashi, kinsuji work in Hamon.
Answer will be posted at next Appraisal Quiz.