Japan Fine Ceramics

What Japan Fine Ceramics does

Japan Fine Ceramics Co., Ltd. (日本ファインセラミックス株式会社) is a Sendai-headquartered manufacturer of advanced fine ceramics founded in 1984 and operating as a wholly-owned subsidiary of JGC Holdings Corporation. The company produces silicon carbide (SiC), silicon nitride (Si3N4), alumina (Al2O3), zirconia (ZrO2), metal-matrix composites (MMC), and thin-film circuits, serving automotive (notably EV power semiconductors), general semiconductor/LCD, medical, aerospace, and energy customers. Its flagship high-thermal-conductivity silicon nitride substrates, produced via proprietary Sintered Reaction-Bonded Technology (SRBT), target EV power module applications where thermal management is critical.

The business is B2B and qualification-driven, with products sold into multi-year, regulated supply chains that require ISO 9001/14001/45001 and ISO/IEC 27001 certification, as well as medical biomaterial approvals. Beyond substrates, the company has expanded into oxygen carrier particles (OCP) using a patented continuous-flow synthesis route, with volume production launched in March 2024, and is prototyping translucent alumina substrates for adjacent LED/optical applications. Manufacturing is supported by multiple dedicated facilities, including a new silicon nitride substrate factory completed in Tomiya in July 2025, and high-precision metrology such as a ZYGO laser interferometer installed in 2023.

The company generates revenue through direct enterprise sales of engineered ceramic components and materials to industrial OEMs and device makers, with pricing tied to specification, volume, and qualification status rather than standardized list pricing. Growth has been capital-intensive: headcount reached 640 (as of July 2026) with reported zero turnover, capital stands at 2.3 billion JPY, and the company has added five new factory buildings over the past five years while reporting 99.79% revenue growth across FY2021–2025. The 2022 acquisition of the Showa Denko Materials ceramics business (operated as JFC Materials) is being unwound via an absorption merger effective July 1, 2026.

Name

Japan Fine Ceramics

Legal name

JAPAN FINE CERAMICS CO., LTD.

Website

https://japan-fc.co.jp

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

251–500 employees

Short description

Japan Fine Ceramics manufactures advanced ceramic materials — primarily silicon nitride, silicon carbide, alumina, and zirconia components — for EV power semiconductor, general semiconductor, medical, aerospace, and energy OEMs from its Sendai headquarters as a JGC Holdings subsidiary.

Ownership category

akta.pro rank

Product category

Fine Ceramics Manufacturing (Engineering Ceramics, Electronic Ceramics, Metal Matrix Composites)

NAICS

Nonmetallic Mineral Product Manufacturing (327), Semiconductor and Other Electronic Component Manufacturing (33441), Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416)

SIC

Electronic Components, Nec (3679)

akta.pro primary industry

Packaging Materials & Chemicals (Underfill/Mold Compound/Die Attach/Solders) (HDAHAGAM)

Keywords

• Fine ceramics manufacturing
• Engineering ceramics components
• Metal matrix composites
• Power semiconductor substrates
• Thin film integrated circuits

Headquarters

HQ city

Sendai

HQ country

Japan

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Fine Ceramics Components and Materials: JFC generates revenue through the manufacture and sale of fine ceramic components and materials, including engineering ceramics (SiC, Si3N4, Al2O3, ZrO2), electronic ceramics (substrates, thin film circuits), and metal matrix composites (MMC). Revenue is derived from product sales to industrial customers across automotive, semiconductor, machinery, energy, medical, and aerospace sectors. The company also offers commissioned machining ( subcontract processing) services as a value-added offering. The 99.79% revenue growth over FY2021-2025 indicates strong top-line expansion driven by SN substrate demand for EVs and semiconductors.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Japan Fine Ceramics manufactures and sells engineered fine ceramic components and materials — including silicon carbide (SiC), silicon nitride (Si3N4), alumina (Al2O3), zirconia (ZrO2), thin film integrated circuits, metal matrix composites (Al/SiC, Al/Si, Si/SiC), and the bioresorbable bone substitute Octacalcium Phosphate (OCP) — together with contract precision processing services such as grinding, lapping, polishing, and honing. Products are custom-manufactured to specification for industrial OEMs across automotive, semiconductor manufacturing equipment, electrical/electronics, machinery, medical, aerospace, energy, and telecommunications sectors. Pricing is quote-based via inquiry form or phone, consistent with B2B custom manufacturing.

Product overview

Japan Fine Ceramics (JFC) is a fine ceramics manufacturer offering a comprehensive portfolio of engineered materials and precision processing services. The product lineup consists of four main categories: (1) Engineering Ceramics including Silicon Carbide (SiC/HEXOLOY), Silicon Nitride (Si3N4/SNP/HSTSiN®), Alumina (Al2O3/ALP/HALOX), Zirconia (ZrO2/ZRP), and Zirconia Toughened Alumina (HALOX-Z); (2) Electronic Ceramics comprising Thin Film Integrated Circuits, Optical Components, Ultra-High Precision Thin Film Resistors, Alumina Substrates for high-frequency applications, Alumina Wafers, Zirconia Substrates (Ceraflex®), and Silicon Nitride Substrates for power semiconductors; (3) Metal Matrix Composites (MMC) including Al/SiC composites via casting (SA301/SA401) and infiltration (SA701), Al/Si composite (SA001), Si/SiC composites (SS501/SS701/SS702), and MMC Die-Cast products; and (4) Contract Processing Services for ceramics including lapping, polishing, grinding, honing, centerless, and ultrasonic machining. Additionally, JFC produces Octacalcium Phosphate (OCP) for bone substitute applications developed with Tohoku University. The company also offers bonding technology for joining SiC parts and specialized processing including CMP, air bridges, side patterns, and AuSn solder patterns for thin film circuits.

Differentiator

Problem solved

Functional benefit

Brands

• Ceraflex®: Zirconia substrates brand - includes Ceraflex®-A (flexible ceramics) and Ceraflex®-8Y (for solid oxide fuel cells and oxygen sensors)
• HEXOLOY®
• HSTSiN®
• NVSiC®

Products and services

• Silicon Carbide (SiC) - SCP/HEXOLOY Silicon carbide ceramics offering high thermal conductivity, excellent corrosion resistance, and superior sliding characteristics. Available in SCP01 (corrosion-resistant/high hardness), SCP02 (high thermal conductivity/high resistance), SCP03 (high strength/small pores), and HEXOLOY-SA/SP grades for industrial customers in harsh-environment applications.
• Silicon Nitride (Si3N4) - SNP Silicon nitride ceramics with high fracture toughness and excellent thermal shock resistance. SNP02 offers high thermal shock resistance and lightweight high strength; SNP03 (HSTSiN®) provides high strength and high reliability for industrial OEM applications.
• Alumina (Al2O3) - ALP/HALOX Alumina ceramics available in multiple purity levels (99.5%, 99.8%, 99.9%) with excellent heat resistance, corrosion resistance, and plasma resistance. ALP series for general purpose and high purity applications; HALOX for large product applications.
• Zirconia (ZrO2) - ZRP Partially stabilized zirconia (PSZ) with 3 mol% Y2O3 addition. Features high mechanical strength at room temperature, high fracture toughness, wear resistance, and electrical insulation properties for industrial applications.
• Zirconia Toughened Alumina - HALOX-Z Sintered zirconia toughened alumina ceramics with excellent mechanical properties, particularly superior erosion and wear resistance compared to standard alumina materials for industrial machinery applications.
• Thin Film Integrated Circuits Integrated manufacturing of thin film circuits on alumina substrates for micro-wave, milli-wave applications. Includes LD/PD submounts, circuit substrates for transceivers, amplifier circuits, frequency conversion circuits, oscillator circuits, and filter circuits for high-frequency device manufacturers.
• Optical Components - Ti/Pt/Au Thin Film Circuits Thin film circuits with platinum middle layer for high solder resistance and titanium interface for reliability. Includes AuSn solder options and side patterns for optical component substrates used in optical communication device manufacturing.
• Ultra-High Precision Thin Film Resistors Ta2Nx (tantalum nitride) based resistors with ultra-precise temperature coefficient of resistance (TCR). Available in sheet resistances of 20Ω/□, 50Ω/□, 100Ω/□, 130Ω/□. Used for attenuators, terminators, dividers, and gain adjustment resistors in high-frequency electronic applications.
• Alumina Substrates (Milli/Micro-Wave) High-grade alumina substrates with 99.9% purity for high-frequency thin film circuit applications. Features high bending strength (660 MPa), low surface roughness (Ra 0.03μm), and excellent high-frequency electrical characteristics.
• Alumina Wafers High-density alumina wafers up to Ø300mm (12 inch) with few pores for fine circuit pattern formation. Low surface roughness (Ra 0.02μm or less) and high bending strength for reduced thickness applications.
• Zirconia Substrates - Ceraflex® Flexible zirconia sheet ceramics in two variants: Ceraflex®-A (high strength/toughness, bendable) and Ceraflex®-8Y (high oxygen ionic conductivity for solid oxide fuel cells and oxygen sensors). Thickness range 0.05–1.0mm.
• Silicon Nitride Substrates (SN Substrates) High thermal conductive silicon nitride substrates for power semiconductors manufactured using Sintered Reaction Bonded Technology (SRBT). Essential for vehicle electrification and power semiconductor mounting in EV, high-speed train, and industrial equipment applications.
• Al/SiC Composite (Casting) - SA301/SA401 Aluminum alloy composite materials containing 30-40vol% SiC ceramic particles. SA301 offers lightness equivalent to aluminum with 1.8x Young's modulus of aluminum. Manufactured via sand mold casting and die casting methods for industrial machinery and precision equipment.
• Al/SiC Composite (Infiltration) - SA701 Composite material where porous SiC body (70vol%) is infiltrated with aluminum. Offers 4x Young's modulus compared to aluminum, 1/3 thermal expansion, and higher thermal conductivity. Supports large parts up to 1.5m × 1.5m for LCD manufacturing equipment and precision stages.
• Al/Si Composite (Infiltration) - SA001 Combined metallic silicon and aluminum composite material. Lighter than aluminum, same rigidity as cast iron, with low thermal expansion near ceramic. Small lot mass production possible up to 1m × 0.5m.
• Si/SiC Composite (Infiltration) - SS501/SS701/SS702 Porous SiC infiltrated with metallic silicon via pressureless infiltration method. Features extremely low thermal expansion, high thermal conductivity. Ideal for heat sink applications including satellite and aerospace equipment.
• MMC Die-Cast High-pressure precision casting technology using Metal Matrix Composites (MMC) jointly developed with KEISHIN Co., Ltd. Produces parts with lightness equivalent to aluminum and rigidity 1.6x aluminum for industrial applications.
• Lapping Processing Service Precision lapping using diamond abrasives and polishing solution between lapping plates. High-precision large-area double-sided lapping with flatness of 1μm and parallelism of 1μm, available as a commissioned machining service for industrial customers.
• Polishing Processing Service Mirror finishing using elastic and viscoelastic polishing sheets with fine abrasives. CMP (Chemical Mechanical Polishing) processing available. High-precision large mirror processing up to Ø500mm available as a commissioned machining service.
• Grinding Processing Service Surface grinding to sub-micron roughness using grinding wheels. Services include surface grinding, internal/external cylindrical grinding, machining center processing, and high-precision cylindrical grinding to 1μm order, offered as commissioned machining.
• Honing/Centerless/Ultrasonic Machining Service Honing for precision internal surface finishing (Ra 1μm or less), centerless grinding for external/internal cylindrical surfaces, and ultrasonic machining for drilling, cutting, and threading of difficult-to-machine materials. Available as commissioned machining services.
• Octacalcium Phosphate (OCP) World's first volume production of biodegradable bone substitute material. Continuous flow synthesis produces 170 g/hr. Precursor of bone apatite crystals with high osteoconductivity and bioresorbability. Developed with Tohoku University for pharmaceutical companies and medical device manufacturers in orthopedic and dental applications.

Quantifiable outcome

• Silicon nitride substrate production for EV power semiconductors has been recognized as globally top-tier in thermal conductivity and mass production capability
• +4 more outcomes

Named customers6 records

Segments8 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered minor and core.

• KEISHIN Co., Ltd.minorStrategic or Co-development PartnerJoint development partnership for high-pressure precision casting technology (die-casting) using Metal Matrix Composites (MMC). JFC and KEISHIN Co., Ltd. collaborate on MMC die-cast product development, combining JFC's MMC material expertise with KEISHIN's die-casting technology.
• National Institute of Advanced Industrial Science and Technology (AIST), Chubu CentercoreTechnology or IntegrationJFC adapted technology owned by AIST Chubu Center for thin ceramic substrates, successfully developing mass-production technology for silicon nitride substrates using Sintered Reaction Bonded Technology. This technology is the foundation of JFC's globally recognized power semiconductor substrate business. AIST's original R&D enabled JFC's commercial breakthrough in EV thermal management materials.
• Tohoku University — Prof. Osamu SuzukicoreStrategic or Co-development PartnerJoint research and development with Professor Osamu Suzuki of Tohoku University Graduate School of Dentistry. Collaboration began in 2013 to scale up octacalcium phosphate (OCP) synthesis from bench scale. Professor Suzuki's bench-scale synthesis method (established 1991) and JFC's engineering capabilities combined to achieve the world's first volume production of OCP. Continuous crystallization process developed in March 2023 enables commercial-scale OCP without byproducts.

Scale indicators12 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• NGK Insulators, Ltd. Japanese ceramics manufacturer with extensive silicon nitride substrate and ceramic honeycomb catalyst businesses. Competes directly with JFC in power semiconductor substrates and industrial ceramics.
• Maruwa Co., Ltd. Japanese manufacturer specializing in alumina substrates, ceramic packages, and dielectric materials for electronics. Direct competitor to JFC's electronic ceramics business, particularly in alumina substrates and high-frequency components.
• Morgan Advanced Materials plc: UK-listed specialty ceramics and composites manufacturer. Overlaps with JFC across SiC, Si3N4, alumina, and MMC product families serving semiconductor, aerospace, and industrial customers.
• Resonac Holdings (formerly Showa Denko / Toshiba Materials): Japanese materials company with a large fine ceramics and SiC business. Notably, JFC acquired Showa Denko Materials' ceramics business in 2022 to form JFC Materials, making Resonac a former parent of a key asset and a continuing competitor in SiC and alumina ceramics.
• Ferrotec Corporation: Japanese manufacturer of advanced materials including SiC and ceramic substrates for semiconductors. Directly comparable to JFC in power semiconductor substrate and SiC machining businesses.
• Denka Company Limited: Japanese specialty chemicals and materials company producing electronic ceramics, alumina substrates, and silicon nitride products. Comparable to JFC in electronics ceramics and serving overlapping semiconductor and automotive customers.
• Kyocera Corporation: Major Japanese manufacturer of fine ceramics including silicon nitride, alumina, and SiC components for semiconductors and automotive. Direct competitor across JFC's engineering ceramics portfolio, with much larger scale and global footprint.
• CeramTec GmbH: German advanced ceramics manufacturer serving medical, automotive, and electronics markets. Comparable to JFC in silicon nitride substrates, alumina components, and bioceramic materials including bone replacement implants.

Broad incumbents

• CoorsTek, Inc. Global leader in technical ceramics serving semiconductor, automotive, medical, and aerospace markets. Overlaps with JFC across engineering ceramics, but operates at significantly larger scale and broader geographic reach.
• Saint-Gobain (Performance Ceramics & Refractories): Global materials conglomerate that owns the HEXOLOY SiC brand used by JFC under license. Larger and broader industrial ceramics and refractory portfolio; serves many of the same end markets including aerospace and semiconductor manufacturing equipment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@japan-fc1984
• LinkedInlinkedin.com/company/japan-fc

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 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 Japan Fine Ceramics