Tokaiseiki

What Tokaiseiki does

Tokaiseiki (株式会社東海精器) is a privately held Japanese precision metal-parts manufacturer founded in 1972 and headquartered at 1-2018 Nishifukuda, Minato Ward, Nagoya City, Aichi Prefecture. The company employs 11-50 people and operates with a registered capital of 10 million yen (1,000万円) under President and Representative Director Eri Katayama. Its business centers on three tightly linked service lines: hot/warm forging (熱間・温間鍛造) for high-temperature forming of iron, aluminum, and stainless steel components; mold making (金型製作) for mass-production tooling with claimed 1/1000mm (micrometer) accuracy; and custom jig manufacturing (治具製作) for production-line efficiency and quality stabilization. The company states it serves automotive manufacturers and tier suppliers (powertrain and structural parts), medical device manufacturers, and general industrial customers, with no public customer logos disclosed.

Underlying the service offering is a capital-intensive in-house equipment fleet that includes vertical machining centers, NC and conventional lathes, milling machines, wire EDM, small-hole EDM, surface grinders capable of 0.001mm accuracy, coordinate measuring machines (CMM), contour measuring instruments, and CAD/CAM systems. This stack enables design-to-inspection in a single facility, which the company uses as the basis for its stated value proposition of delivering high-quality precision parts "fast and affordably" through the combination of veteran craftsmanship and modern equipment. The workforce is built around cross-departmental knowledge sharing, with new hires rotating through all departments over roughly two months before specializing across three to four machining processes.

Commercially, Tokaiseiki runs a direct B2B model with no intermediaries, resellers, or digital channels beyond a corporate website and inquiry form. Pricing is quote-based and project-by-project; the contact form explicitly distinguishes "quote/order," "processing inquiries," and "other," confirming a project-based custom-manufacturing revenue model rather than recurring or catalog sales. The company is geographically concentrated in Japan (specifically Aichi Prefecture), with no disclosed export activity, foreign subsidiaries, partnerships, or external investment. Marketing is limited to corporate website content and recruitment branding, and there is no social media presence or public pricing. The company is actively recruiting manufacturing technicians, which — together with a 2025 website and equipment presentation refresh — points to incremental scaling at the existing single-site footprint rather than aggressive expansion.

Name

Tokaiseiki

Legal name

株式会社東海精器

Website

https://tokaiseiki.jp

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

Tokaiseiki is a privately held Japanese precision metal-parts manufacturer in Nagoya specializing in hot/warm forging, custom mold making, and jig fabrication at micrometer accuracy for automotive, medical device, and general industrial customers. It sells via direct B2B project-based quoting from a single site.

Ownership category

akta.pro rank

Headquarters

HQ city

Fuji

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Custom Metal Parts Manufacturing: One-time custom manufacturing of precision metal parts, molds, and jigs based on customer specifications. Revenue generated through project-based orders with pricing determined by complexity, materials, and volume requirements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Tokaiseiki is a precision metal parts manufacturer specializing in three interconnected core offerings: hot/warm forging of metal components, design and manufacturing of high-precision molds, and custom fabrication of jigs. The company serves automotive, medical device, and general manufacturing industries with micron-level (1/1000mm) precision, supporting diverse materials including iron, aluminum, and stainless steel. Operations are supported by an in-house fleet of machining, EDM, grinding, and measurement equipment enabling end-to-end design-to-manufacture capability.

Product overview

Tokaiseiki is a precision manufacturing company specializing in three core product lines: Hot/Warm Forging, Mold Making, and Jig Making. The company operates as a unified manufacturing services provider where these three offerings are interconnected — molds and jigs are essential tools for the forging and mass production process. The manufacturing workflow is supported by a comprehensive fleet of 8+ types of machining and processing equipment including vertical machining centers, NC/CNC lathes, milling machines, wire EDM, surface grinders, and precision measurement instruments like CMM and contour measuring systems. The company emphasizes micron-level (1/1000mm) precision across all production activities, serving industries including automotive, medical, and general manufacturing.

Differentiator

Problem solved

Functional benefit

Products and services

• Hot/Warm Forging (熱間・温間鍛造) Metal forming service that heats metal materials and precisely shapes them under high temperature conditions, achieving both durability under high heat and micron-level precision accuracy. Supports diverse materials including iron, aluminum, and stainless steel. Customers include automotive and medical device manufacturers requiring precision components.
• Mold Making (金型製作) Design and manufacturing of molds for mass production of high-precision metal parts, achieving 1/1000mm (micrometer) precision and faithfully reproducing complex shapes. Offers mold solutions optimized for durability and productivity for industrial customers.
• Jig Making (治具製作) Custom-made jigs designed to improve quality and efficiency of manufacturing lines, tailored to customer-specific challenges. Directly contributes to workload (man-hour) reduction and quality stabilization for production lines across various industries.

Quantifiable outcome

• Micron-level accuracy achieved across manufacturing processes
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Makino Milling Machine Co. Japan-based manufacturer of horizontal and vertical machining centers for precision metal cutting. Operates in the same precision machining ecosystem; comparable to Tokaiseiki's vertical machining center work but as a machine tool builder rather than a job shop.
• Nachi-Fujikoshi Corporation: Japanese diversified manufacturer of cutting tools, bearings, and hydraulic equipment. Comparable as a major domestic precision metalworking player serving automotive OEMs, though its portfolio is far broader than Tokaiseiki's contract manufacturing focus.
• Tungaloy Corporation: Japan-headquartered manufacturer of metalworking cutting tools, inserts, and tooling systems. Comparable in serving precision metalworking customers across automotive and industrial segments, though as a tooling supplier rather than parts maker.
• Citizen Machinery: Japanese manufacturer of precision CNC lathes and machining equipment used in metalworking job shops. Operates in the same precision machining ecosystem as Tokaiseiki, though at much larger scale as a machine tool maker rather than a contract parts manufacturer.
• Sodick Co., Ltd. Japanese manufacturer of EDM machines and precision machining systems with its own parts manufacturing operations. Comparable for Tokaiseiki's wire EDM and small-hole EDM equipment, and shares the precision components customer base.
• OSG Corporation: Large Japanese manufacturer of taps, end mills, and precision cutting tools. Operates in the broader precision metalworking category, supplying the same kind of automotive and industrial customers that Tokaiseiki serves, though at significantly larger scale.
• Disco Corporation: Japan-headquartered leader in precision dicing and grinding equipment for semiconductor and electronics manufacturing. Comparable as a high-precision Japanese components and equipment manufacturer serving demanding industrial customers, though in a different end market.

Direct peers

• Union Tool Co. Japanese manufacturer of precision cutting tools including end mills and drills. Comparable in producing tight-tolerance metalworking products and serving automotive and industrial customers requiring micron-level precision.
• Fuji Die Co. Japanese specialist in precision die components and progressive tooling for metal stamping. Comparable in producing tight-tolerance tooling and precision metal components, serving automotive and electronics OEMs with similar customer profiles.
• Yamawa Manufacturing: Japan-based manufacturer of precision threading taps, dies, and small precision metal components. Comparable to Tokaiseiki in producing high-precision metal parts and tooling for industrial customers requiring tight tolerances.

Market position

Weaknesses5 records

Competitive moat4 records

Key highlights8 records

Customer concentration

• Xx.com/tokaiseiki

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tokaiseiki