Akiharu Mizuno "Tantetsu Goma" Aogami #2 Mizu-Honyaki DX Full Mirror Ripple 330mm Yanagiba

by Mizuno Tanrenjo


This "Tantetsu Goma" (鍛鉄降魔) mizu-honyaki yanagiba was made in 1995 (the 7th year of the Heisei era) to celebrate the 123th anniversary of Mizuno Tanrenjo. The knife was forged by Mizuno's 3rd generation master, late Akiharu Mizuno, and mirror-polished and hand-sharpened by legendary sharpener Tsutomu Minamiura. This knife has an exquisite honyaki ripple hamon line that is both unique and aesthetically amazing. The beautiful thin grind and thinness behind-edge supported by Aogami #2 make this blade a winner of cutting performance. Paired with a premium custom triple ginmaki rosewood wa-handle with marble buffalo horn kuchiwa.

Comes with a wooden box and a certificate of authenticity. Only one available.


  • Origin (Made in): Sakai, Osaka Prefecture, Japan
  • Brand: Minamoto Akitada 源昭忠
  • Workshop: Mizuno Tanrenjo 
  • Craftsman: Akiharu Mizuno 水野 昭治 (Sadaaki Mizuno 水野 貞昭)
  • Sharpener: Tsutomu Minamiura 南浦 力
  • Knife Type: Yanagiba
  • Blade
    • Construction: Mizu-Honyaki
    • Grind: Single Bevel (Right-handed)
    • Steel Type: Aogami #2 (Blue #2)
    • Hardness: 64-65 HRC
    • Hand-forged, hand-grinded, hand-sharpened
  • Blade Finishes:
    • Ripple ("Kawazukochoji蛙子丁子)
    • So-Kyomen (Full Mirror)
  • Blade Length: 330mm (13.0")
  • Blade Height (at heel): 39mm
  • Spine Thickness
    • Above heel: 4.4mm
    • Middle: 3.4mm
  • Handle
    • Premium Luxury Custom Handle
    • Shape: Hachikaku (Octagonal)
    • Material: Rosewood (Dalbergia Odorifera)
    • Kuchiwa / Tsukajiri: Marble Buffalo Horn
    • Divider: Rosewood (Dalbergia Odorifera)
    • Ginmaki: Nickel Copper (x3)
    • Length: 160mm
  • Overall Length: 501mm
  • Weight: 304g (10.72oz)
  • Engraved Mark: In Japanese Kanji  "Tantetsu Goma" (鍛鉄降魔) ; "Sadaaki Mizuno Made" (水野 貞昭作)
  • Comes with a Decorative Wooden Box (Paulownia Box) and Certificate

About Mizuno Tanrenjo 水野鍛錬所 / Minamoto Akitada 源昭忠

Established in 1872, the Mizuno Tanrenjo workshop is one of the most prestigious blacksmith workshops in Japan. Five generations of Mizuno blacksmiths have worked on projects of cultural significance and won accolades for their craftsmanship. The works of 2nd generation blacksmith Masanori Mizuno still hangs on top of the pagoda at Japan's first UNESCO site, and the 3rd generation Akiharu Mizuno - a portage of Japan's national treasure blacksmith Teiichi Tsukiyama - has won a prestigious award for his honyaki yanagiba. The Mizuno family workshop has received two royal visits by Prince Mikasa of Japan, who is personally a fan of their craftsmanship. Today Mizuno Tanrenjo is led by 5th generation master blacksmith - Jun Mizuno (a.k.a. Noritada Mizuno) whose superior craftsmanship and extraordinary honyaki works have been recognized by two of Japan’s top Ichinomiyas (shrines) which have commissioned his katanas to become the shrines’ permanent collections.


Aogami #2 (Blue #2) steel is a premium Japanese high carbon steel for knife making. Despite some corrosion resistant quality (for a carbon steel), it is not stainless, therefore you should wipe your knife dry after each use. Patina will develop over time. Rust may develop if left in prolonged contact with water or acidic food. Use a rust eraser to clean if rusts develop. Avoid cutting into bones, frozen foods, hard fruit pits.

Cutting Surface:

Recommended cutting surface: wood, rubberized boards and high-end composites, and quality plastics such as polyethene make acceptable cutting surfaces, and will help protect and prolong knife’s edge. AVOID glass, metal, countertops, and other rigid, non-forgiving surfaces.


We recommend sharpening all quality Japanese knives on whetstones, as we believe they yield the best results for your knives. 

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