Mikisyo Hamono is a multigenerational kogatana-making blacksmith shop in Miki, Japan. The blade you see here is a type of Unagi knife popular in Tokyo and is specifically made to clean and process eels in the food industry. There are about 80 registered traditional craftsmen blacksmiths. He said there used to be dozens of kogatana blacksmiths in his town 50 years ago, but now there are only two. Mr. Nagaike is one of them. His name is Hiroyuki Nagaike, born in 1939, and when calling him as a craftman, he changes his first name to Kohsetsu, namely Kohsetsu Nagaike.
Each knife is made by hand so measurements will vary.Business Name: Mikisyo
Location: Miki City, Japan
Blacksmith: Hiroyuki Nagaike
Construction: Hammer Forged/Ni Mai
Edge Steel: White #2
Cladding: Soft Iron
Edge: Single Bevel, Right Sided
Weight: 4.5 oz (128 g)
Edge Length: 145 mm
Total Length: 275 mm
Spine Thickness at Heel: 4 mm
Blade Height: 29 m
Here is a video of the master of kogatanas:
Each knife is made by hand so measurements will vary.
Here is a video of the master of kogatanas:

