Trusted Companies Breathing Life into Patterns Through Expertise and Service

1. MOKUMEGANEYA Co., Ltd.

— A Leading Company in Mokume-Gane Jewelry —

Head Office & Studio: Ikegami Aoyama ANNEX 3F, 3-38-17 Jingumae, Shibuya-ku, Tokyo
Established: December 1, 2003
Business: Planning, production, and sales of bridal jewelry using Mokume-gane
Stores: Direct branches in major cities including Ginza, Shinjuku, Yokohama, Sendai, Nagoya, Kyoto, Osaka, and Hiroshima

Highlights:

  • Multiple international design awards (iF Design Award, German Design Award)
  • Custom order experiences and “sharing ceremonies” led by artisans are highly acclaimed
  • Operates an affiliated nonprofit, the Japan Mokume Gane Research Institute, to support technical research and transmission

Note:
Please verify all current details through the company’s official website or inquiry channels.


2. Enishi Co., Ltd. (Mokume Gane Studio Enishi)

— Traditional Technique and Monthly Limited Handmade Craftsmanship —

Location: 382-1 Motomachi, Higashiyama-ku, Kyoto, Japan
Founded: 1997
Business: Production of Mokume-gane wedding rings and hands-on crafting experiences
Workshops: Experience studios in Tokyo (Jingumae), Nagoya, Osaka, Kyoto, and Kobe

Highlights:

  • Emphasis on Edo-period methods, accepting only 20 custom orders per month
  • Popular hands-on ring-making sessions with artisans
  • Nationwide collaboration with bridal shops and online ordering available

Note:
Please confirm the latest details via the company’s website or direct contact.


3. Studio SORA

— Pioneer of “TERRAMETAL”: Innovative Mokume-Gane with Rare Metals —

Operating Company: SORA Co., Ltd. (Established 2001)
Background: Began as a metalworking school in 1994; first Mokume-gane rings released in 1996
Main Studio: 4-11-1 Jingumae, Shibuya-ku, Tokyo (Omotesando), with branches in Sapporo, etc.

Highlights:

  • Patented “TERRAMETAL®” technology: seamless rare-metal Mokume using titanium and zirconium (Patent No. 4422707)
  • Known for aurora-like colors and playful designs; hands-on classes available
  • Flagship stores in Omotesando and Sapporo; now sold through Bijoupiko partner shops

Note:
Check official sources for the most up-to-date information.


4. K.UNO Co., Ltd.

— Nationwide Brand Specializing in Custom Mokume-Gane Jewelry —

Headquarters: Nekogahora-dori, Chikusa-ku, Nagoya; also operates in Jiyugaoka, Tokyo
Founded: 1981; incorporated March 29, 1991
Employees: Approximately 554–579 (2020–2024)
Business: Custom jewelry design and production, including Mokume-gane; repairs, remakes, DIY experiences

Highlights:

  • Launched Mokume-gane engagement and wedding rings in 2009
  • DIY ring-making offered at over 13 locations
  • Series such as “MOKUME Piantina” and “Albero”
  • Industry-leading permanent free warranty and aftercare system

Note:
Latest information should be confirmed with the company directly.


Summary

CompanyHighlightsNote
MOKUMEGANEYAAward-winning, immersive experiences, R&D supportInternal and recent info may vary
EnishiEdo-era techniques, national workshops, DIY focusSome info estimated or inferred
Studio SORAPatented rare-metal Mokume, unique designsVerify store and partner info for accuracy
K.UNONationwide stores, DIY, extensive support & warrantyAwards and ratings may change over time

How to Choose

  • For consultations or purchasing: Visit MOKUMEGANEYA or Enishi.
  • For DIY crafting experiences: Enishi and Studio SORA offer hands-on sessions.
  • For tech innovation or materials research: Explore patents, company disclosures, and affiliated organizations.

Note: Always confirm current details directly with each company.