日光化成（株）

What 日光化成（株） does

日光化成株式会社 (Nikko Kasei Co., Ltd.) is a privately held Japanese specialty materials manufacturer founded in 1947 and headquartered in Osaka, with a registered capital of ¥100M. The company develops, formulates, and processes thermosetting resin composite materials built on a proprietary technology platform the firm describes as its '4 Core C's' (Combination, Compounding, Coating, Connection). Its product portfolio spans two principal segments: Resin Materials — including electrical insulation laminated sheets (NIKOLYTE), ultra heat-resistant molded materials (Taimold, Thermobarrier 800), heat-resistant insulation boards (Rosna Board), lightweight thermal insulation (Kallight, Kalhon-L), PCB handling pallets (Niko Pallet), magnetic laminated sheets, FRP pipes, thermal dissipation sheets, and lithium-ion battery thermal runaway prevention sheets (Niko Expansion Sheet) — and Building Materials, including non-combustible interior panels (Vintage Tone, DELUXIA), antibacterial kitchen panels (Pastel Tone, Pleasure), and the COMMOPLUS custom kitchen brand.

Nikko Kasei operates two production sites (Osaka HQ factory and Shiga Factory), a dedicated R&D Technical Center at Atsugi (Kanagawa), and a wholly-owned Chinese manufacturing and sales subsidiary (Suzhou Nikko Heat-Resistant Plastics). Domestically the company sells through six sales offices covering Osaka, Tokyo, Sendai, Kanagawa, Nagoya, and Fukuoka. The customer base spans automotive and EV manufacturers, JR (Kallight adopted on Nozomi and next-generation Shinkansen trains), semiconductor manufacturers, medical device OEMs (disposable three-way stopcocks, duckbill valves, and plungers manufactured in cleanroom conditions), industrial equipment makers (e.g., Inoac Corporation), and the residential and commercial construction sector.

The business model is direct B2B sales on a quotation basis, with pricing tailored to specification, volume, and customer requirements. Revenue is generated primarily through one-time sales of materials and OEM-manufactured components rather than subscription or licensing. The company holds ISO 9001:2015 certification (Osaka and Shiga factories, valid through November 2027), has been recognized as a 'Regional Future Driving Enterprise' (METI, 2018), a 'Vibrant SME 300' (SME Agency, 2019), an 'Osaka Manufacturing Excellence' awardee (2020), and was certified as a '100 Billion Yen Declaration Enterprise' by the SME Agency in October 2025, signaling a public commitment to reaching ¥10B in revenue.

Name

日光化成（株）

Legal name

日光化成株式会社

Website

https://nikkokasei.co.jp

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

1–10 employees

Short description

Nikko Kasei Co., Ltd. is a Japanese specialty materials manufacturer (founded 1947, Osaka) that develops thermosetting resin composites and building materials, serving automotive, railway, semiconductor, medical, and construction customers via direct B2B sales and a Chinese manufacturing subsidiary.

Ownership category

akta.pro rank

Product category

Specialty Industrial Resin Composite Materials

NAICS

Plastics Material and Resin Manufacturing (325211), Plastics Packaging Film and Sheet (including Laminated) Manufacturing (326112), Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Plastics Products, Nec (3089), Unsupported Plastics Film & Sheet (3081), Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820)

akta.pro primary industry

Coated & Laminated Industrial Fabrics (Tarpaulins/Awnings/Inflatables/Architectural Membranes) (IMAOADAI)

akta.pro secondary industries

Plumbing & Building Drain/Waste/Vent (DWV) Pipe & Fittings (IMANADAG), Medical & Life Sciences Injection Molding (Devices, Diagnostics, Cleanroom) (IMANAFAC)

Keywords

• Thermosetting resin materials
• Electrical insulation laminates
• Heat-resistant composite boards
• Disposable medical components
• Non-combustible interior panels

Headquarters

HQ city

Osaka (大阪市)

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Resin Materials Sales: Sale of thermosetting resin composite materials including laminated sheets (Nikolite), heat-resistant boards (Rosna Board, Thermobarrier), molded materials (Taimold), PCB pallets (Niko Pallet), and specialty sheets. Products are sold to manufacturers in automotive, railway, medical, semiconductor, electrical equipment, and other industrial sectors.
2. Building Materials Sales: Sale of architectural/building materials including interior panels (Vintage Tone), kitchen panels (Pastel Tone), and custom kitchen systems under the COMMOPLUS brand to residential and commercial building projects.
3. Medical Device Manufacturing: OEM and custom manufacturing of disposable medical devices including three-way stopcocks, duckbill valves, and plungers for healthcare equipment manufacturers.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Nikko Kasei manufactures and sells thermosetting resin composite materials — primarily electrical insulation laminated sheets, heat-resistant insulation boards and pipes, ultra heat-resistant molding materials, PCB handling pallets, thermal dissipation sheets, and lithium-ion battery safety expansion sheets — using its proprietary '4 Core C's' technology (Combination, Compounding, Coating, Connection). The company also produces non-combustible interior and kitchen panels for the building materials market and cleanroom-manufactured disposable medical devices (three-way stopcocks, duckbill valves, plungers), selling these to industrial OEM customers in automotive, railway, semiconductor, medical, and architectural sectors.

Product overview

日光化成株式会社 is an integrated materials manufacturer combining electrical insulation material technology with advanced composite material development. The company's product portfolio spans two main categories: Resin Materials (フェノール/epoxy/melamine/polyimide/silicone resin laminated sheets, heat-resistant molded materials like タイモルド, magnetic laminated sheets, FRP pipes, PCB handling pallets, heat-resistant insulation boards including ロスナボード/サーモバリア800/カルライト/カルホン-L, thermal dissipation sheets, and specialty products like ニコ膨張シート for battery safety) and Building Materials (キッチンパネル/ヴィンテージトーン/抗菌仕様パネル/プレジュア for interior applications). The company provides integrated solutions from material development through processing, molding, and component manufacturing, serving diverse industries including automotive, railway, medical, semiconductor, and construction.

Differentiator

Problem solved

Functional benefit

Brands

• NIKOLYTE®: Electrical insulation laminated sheets product line
• COMMOPLUS
• DELUXIA

Products and services

• Nikolyte Laminated Sheet (ニコライト積層板) Electrical insulation laminated sheet offered in various resin and base material combinations for diverse industrial applications including electrical equipment, motors, and transformers.
• Rosna Board (ロスナボード) High-performance heat-resistant insulation board maintaining thermal insulation at continuous 400°C, featuring exceptional dimensional stability and minimal thermal creep under sustained high-temperature operation.
• Thermobarrier 800 (サーモバリア800) Ultra heat-resistant insulation board with the highest thermal resistance in the company's product line, capable of stable operation at 800°C with excellent machinability for cutting and grinding.
• Taimold Ultra Heat-Resistant Molding Material (タイモルド) Ultra heat-resistant molding material developed from the company's composite material technology, enabling use at 300-500°C with shape retention at 1,000°C, combining ceramic-like heat resistance with superior moldability and toughness.
• NK-MF Magnetic Laminated Sheet (磁性積層板 NK-MFシリーズ) Magnetic laminated material combining insulation properties with magnetic permeability, used as magnetic wedges in stators of generators and induction motors to improve efficiency and enable miniaturization.
• Nikolyte Laminated Pipe Series (ニコライト積層管シリーズ) Laminated pipe series produced using sheet winding method with various resin and base material combinations including epoxy/glass cloth (GFRP) and epoxy/carbon fiber (CFRP) for core materials and industrial applications.
• Niko Pallet PCB Handling Pallet (ニコパレット) PCB handling pallet made from proprietary resin material with superior durability and high strength compared to FR-4, featuring excellent heat resistance for lead-free soldering and static electricity prevention.
• Kallight Lightweight Heat-Resistant Insulation Material (カルライト) Lightweight heat-resistant insulation material achieving specific gravity of 1.0 (half that of conventional laminated sheets) while maintaining equivalent heat resistance, insulation, and durability for weight reduction applications, including Shinkansen train components.
• Kalhon-L Ultra-Lightweight Insulation Board (カルホン-L) Ultra-lightweight board with exceptional low thermal conductivity of 0.077 W/m·K, heat resistance up to 350°C, and non-combustibility, designed for mold and press machine thermal insulation applications. Received Inoac 2023 Winter Energy Conservation Committee Grand Prize for CO2 reduction effectiveness.
• Rosna Heat-Resistant Sheet (ロスナ耐熱シート) Flexible elastomer sheet with 200°C heat resistance combining flexibility and thermal dissipation properties, suitable for forming into various shapes with excellent electrical insulation and conformability to curved surfaces.
• Niko Thermal Dissipation Sheet (ニコ放熱シート) Elastomer sheet with excellent flexibility, thermal dissipation, and insulation properties for electronic device thermal management, available in high heat-resistant type (200°C) and low hardness type (150°C).
• Niko Expansion Sheet / Rosna Film (ニコ膨張シート) Thermal runaway prevention sheet for lithium-ion batteries that expands multi-stage during battery abnormalities to insulate heat between cells, preventing thermal runaway propagation.
• Vintage Tone Interior Panel (ヴィンテージトーン) Interior wall panel featuring Japan's first resin-based non-combustible base material with matte painted finish, offering superior fire resistance certification (NM-4025) and excellent workability compared to slate substrates.
• Kitchen Panel / Pastel Tone (キッチンパネル／パステルトーン) Kitchen wall panels with antibacterial specification using metal ion-based antibacterial agents, available in various colors with high design flexibility and fire resistance certification.
• Pleasure Non-Combustible Low-VOC Panel (プレジュア) Non-combustible, low-VOC panel developed using the company's four 'C' resin technologies, featuring inorganic filler-based fire resistance and large panel size availability for architectural applications.
• Rosna Washer (ロスナワッシャー) Heat-resistant washer machined from Rosna Board material, providing electrical insulation and thermal insulation with high compression strength, suitable for applications requiring 400°C heat resistance.
• Rosna Cushion High-Heat Cushioning Material (ロスナクッション) High-heat cushioning material maintaining shape at 800°C, made without asbestos or RCF, with thermal conductivity of 0.09-0.12 W/mK and thickness from 1mm, suitable for high-temperature equipment spacers.
• Rosna Pipe High-Heat Insulation FRP Pipe (ロスナパイプ) High-heat, high-strength FRP insulation pipe with 400°C heat resistance, offering high insulation, arc resistance, and low thermal conductivity for electric furnace electrodes and high-temperature press insulation collars.
• Disposable Medical Devices (ディスポーザブル医療製品) Disposable medical devices manufactured in cleanroom facilities including three-way stopcocks, duckbill valves, and plungers, designed with safety and usability for healthcare fluid-handling applications.
• COMMOPLUS Custom Kitchen Brand High-end custom kitchen system brand leveraging the company's resin material technology, offering ordermade kitchen and panel solutions for residential and commercial interior applications.

Quantifiable outcome

• Kallight material adopted for JR 'Nozomi' Shinkansen and next-generation Shinkansen trains, demonstrating lightweight and insulation performance in railway applications.
• +2 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered minor and core.

• Green Science Co., Ltd. (グリーンサイエンス株式会社)minorStrategic or Co-development Partner · 25 October 2017Related company providing green science products. Listed as a related company on Nikko Kasei's website.
• Suzhou Nikko Heat-Resistant Plastics Co., Ltd. (蘇州日光耐熱塑料有限公司)coreStrategic or Co-development PartnerOverseas subsidiary in Suzhou, China, manufacturing and selling heat-resistant plastic products. Nikko Kasei's primary overseas production and sales base.
• JST (Japan Science and Technology Agency) / Ministry of Economy, Trade and IndustryminorStrategic or Co-development PartnerNikko Kasei participated in JST-sponsored Open Innovation Challenge Pitch events in Kansai (January 2020) and Kanto (February 2020), and in Chugoku region (January 2021). Demonstrates company's commitment to open innovation.
• Kobe University Graduate School of Science, Technology and InnovationminorStrategic or Co-development PartnerConsortium research collaboration with Professor Kutsuna's research group on intellectual property utilization. Prof. Kutsuna served as moderator at a patent symposium co-hosted by Nikko Kasei.
• Osaka Institute of Technology (ORIST) — Osaka Bureau of IndustryminorStrategic or Co-development PartnerNikko Kasei participated in the Osaka/Kansai Expo 2025 as part of the Beyond5G Material Development Unit joint consortium, exhibiting at the ORIST booth in the Osaka Healthcare Pavilion.
• ABC Cooking StudiominorOthersDELUXIA brand advertisement published on the back cover of ABC Cooking Studio's quarterly spring magazine.

Scale indicators3 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Sumitomo Bakelite Co., Ltd. Japanese thermosetting resin and phenolic molding compound specialist with electrical insulation laminates and high-performance composites — closely overlapping with Nikko Kasei's Nikolyte, Taimold and Rosna product families in both materials and end-markets.
• Rogers Corporation: US-based specialty materials company producing high-performance laminates, thermal management and EV battery materials — directly comparable to Nikko's Rosna Board, Niko Thermal Dissipation Sheet and battery safety product lines for industrial and EV customers.
• Hexcel Corporation: Advanced composite materials manufacturer with carbon fiber and glass-cloth reinforced laminates serving aerospace, rail and industrial markets — comparable to Nikko's epoxy/glass and epoxy/carbon fiber laminated pipes and Nikolyte reinforced laminates.
• Morgan Advanced Materials: UK-listed specialist in high-temperature insulation, ceramics and engineered composites — directly comparable to Nikko's Thermobarrier 800, Taimold and Rosna Cushion product lines for industrial heat-resistant applications.

Broad incumbents

• Toray Industries, Inc. Japanese advanced materials leader in carbon fiber composites, resins and films — overlaps with Nikko's epoxy/carbon fiber laminated pipes and glass-cloth reinforced Nikolyte while operating across a far broader product spectrum.
• DuPont de Nemours, Inc. Global specialty materials giant with thermal management, electronic materials and high-performance composites — comparable to Nikko's Kalhon-L, Rosna Sheet and Niko Thermal Dissipation Sheet portfolios at much larger scale.
• Resonac Holdings (formerly Showa Denko): Major Japanese specialty chemicals and advanced materials conglomerate with broad coverage in electronic materials, heat-resistant products and composites — overlaps with Nikko Kasei's industrial materials portfolio but operates at vastly greater scale and product breadth.
• Mitsubishi Chemical Group: One of Japan's largest materials conglomerates with thermoset resins, specialty plastics and composite materials — provides the upper-bound scale benchmark for Nikko Kasei's specialty resin business.
• Kuraray Co., Ltd. Japanese specialty chemicals producer with significant operations in resins, films and performance materials — comparable to Nikko's thermoset resin compounding capability while operating across much larger markets including packaging and fibers.

Emerging players

• Nipro Corporation: Japanese medical device manufacturer with disposable components including stopcocks and valves — comparable to Nikko's cleanroom-manufactured disposable medical devices (three-way stopcocks, duckbill valves, plungers), though Nikko acts as OEM supplier rather than branded device maker.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/shotenkenchiku
• YouTubeyoutu.be/wC8HyNcrWt8?si=zW3diWwxOZdYFthP
• LinkedInlinkedin.com/company/%E6%97%A5%E5%85%89%E5%8C%96%E6%88%90%EF%BC%88%E6%A0%AA%EF%BC%89

Compliance1 record

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 日光化成（株）