Japan Supplier & Company Research

I found three Japan-based companies in Aichi or Gifu whose official sources show relevant ceramic manufacturing or precision-machining capabilities. I prioritized Japanese primary sources and did not rely on English-language directories or reseller listings.

1. Ishikawa Giken Industry Co., Ltd.

• Japanese name: 石川技研工業株式会社
• Location: Mizuho, Gifu
• Role: Ceramic processor / manufacturer
• Evidence status: Verified
• Relevant capabilities: Precision machining of alumina, zirconia, SiC, AlN and other engineering ceramics. The company lists machining centers, grinding centers and ultrasonic machining equipment.
• Precision evidence: Its official machining information states processing accuracy ranges down to 0.001 mm for some ceramic components and describes machining of alumina, zirconia and other technical ceramics.
• Primary source: https://www.ishikawa-giken.co.jp/products/machining.html
• Company profile: https://www.ishikawa-giken.co.jp/about.html
• Accessed: 2026-09-23

Why it matches

The official company information identifies ceramics as a core business and lists in-house machining equipment. Its product information provides specific materials, dimensions and processing-accuracy examples. This is strong primary-source evidence that the company performs precision ceramic processing rather than merely reselling ceramic products.

2. Wicera Co., Ltd.

• Japanese name: 株式会社ウイセラ
• Location: Mizunami, Gifu
• Role: Fine ceramics manufacturer
• Evidence status: Verified
• Relevant capabilities: Manufacturing and machining of fine ceramic products including alumina and zirconia.
• Precision evidence: The company describes high-precision mechanical machining for fine, small-diameter and complex shapes, covering both small-lot and mass-production work.
• Primary source: https://www.wicera.co.jp/
• Accessed: 2026-09-23

Why it matches

The official company profile states that its business includes manufacturing and selling fine ceramic products. Its technical information separately describes high-precision mechanical machining, so the manufacturer classification does not depend on a directory or reseller description.

3. Trio Co., Ltd. / Trio Ceramics

• Japanese name: トリオ株式会社
• Location: Seto, Aichi
• Role: Ceramics company with in-house processing capabilities
• Evidence status: Verified
• Relevant capabilities: Processing of ceramics including alumina and zirconia, supported by grinding, milling and machining equipment.
• Precision evidence: Its official equipment list includes precision surface grinders, cylindrical grinders, an NC cylindrical grinder, NC milling machines and machining centers.
• Primary source: https://trio-inc.com/ceramics/equipment/
• Company profile: https://trio-inc.com/company/
• Accessed: 2026-09-23

Why it matches

The company’s official site identifies Trio Ceramics as a ceramics business and publishes a detailed list of processing equipment. This provides primary-source evidence of actual machining capability rather than relying only on marketing claims from a third-party directory.

Verification notes

These companies were classified using accessible official company sources. “Verified” here means that the stated company role, location, materials or machining capabilities are supported by the cited primary sources. It does not mean that every requirement of a specific RFQ has been confirmed.

The public sources reviewed do not establish current inventory, MOQ, pricing, lead times, export availability or willingness to accept a specific project. Those items should be confirmed directly with each company.

Recommended next steps

1. Send the drawing, material requirement, tolerance and expected quantity to the shortlisted companies.
2. Confirm whether the required geometry can be produced with their available ceramic-machining processes.
3. Request current MOQ, lead time, pricing and export terms directly from each supplier.
4. Treat any requirement not explicitly confirmed by the supplier as Not verified.