TDK
Japanese multinational manufacturer of electronic components, magnetic materials, sensors, batteries and data-storage technologies.
Last updated October 7, 2026
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Overview
TDK is a Japanese multinational electronics company whose origins lie in ferrite, an iron-based magnetic material that became important in radio and communications equipment. Founded in Tokyo on 7 December 1935 by Kenzo Saito, the company took its name from the initials of Tokyo Denki Kagaku Kogyo, or Tokyo Electric Chemical Industry. From its original materials-science foundation, TDK developed into a broad electronic-components supplier serving consumer electronics, automobiles, telecommunications, computing, industrial equipment and energy applications. The company became internationally recognizable through magnetic recording media. It began producing magnetic tape in the 1950s, introduced compact cassette tapes in the 1960s, and later manufactured a wide range of videotapes, optical discs and other storage products. TDK's cassette products made the brand familiar to consumers around the world, while its engineering businesses supplied less visible but strategically important components to electronics manufacturers. The recording-media business was eventually sold to Imation in 2007, and the related TDK consumer license was relinquished in 2015 as the company moved away from branded media and concentrated on industrial technology. TDK's modern portfolio is centered on electronic components and systems rather than finished consumer devices. Its products include multilayer ceramic capacitors, inductors, ferrite and other magnetic components, sensors, actuators, power supplies, batteries, electromagnetic components, radio-frequency modules, hard-disk-drive heads and suspensions, and application-specific integrated circuits. The company has also expanded into lithium-ion and other rechargeable battery technologies, energy-storage systems, automotive electronics, and embedded sensing. TDK's components are used in smartphones, computers, vehicles, factory equipment, medical equipment, communications infrastructure and many other products. A major strategic turning point came in the 1980s, when TDK developed multilayering technology for chip capacitors and inductors. This helped it participate in the miniaturization of personal computers, mobile phones and other electronic equipment. Its acquisition of SAE Magnetics in 1986 strengthened its magnetic-head business, while later acquisitions broadened the company into power supplies, passive components, batteries, sensors, semiconductors and custom integrated circuits. Important additions included Amperex Technology, Lambda's power-supply businesses, EPCOS, Hutchinson Technology, Micronas, InvenSense, Chirp Microsystems, Faraday Semi, ICsense and other technology companies. TDK operates as a business-to-business technology supplier, although its name remains familiar because of its historical audio and recording products and its extensive sports, music and outdoor advertising sponsorships. The company has sponsored the World Athletics Championships since the inaugural 1983 event and has supported orchestral performances in Japan through its TDK Orchestra Concerts program. It has also maintained prominent advertising presences, including signage in Times Square and, historically, Piccadilly Circus. In 2024, TDK became an official technology partner of the McLaren Formula E Team and McLaren Shadow F1 Sim Racing Team. Today, TDK positions itself around materials innovation, miniaturization, energy efficiency, sensing and power management. Its growth strategy emphasizes automotive electrification, advanced batteries, renewable-energy and power-conversion applications, communications, industrial automation, robotics, augmented and virtual reality, and connected consumer devices. The company also operates the TDK History Museum in Nikaho, Akita, which presents its technologies and corporate development to the public.
History
TDK was established in Tokyo on 7 December 1935 to commercialize ferrite, a magnetic material developed by Yogoro Kato and Takeshi Takei. The company's early work focused on producing ferrite cores for radio equipment. During the years before 1945, it manufactured millions of cores, including components used in military radio receivers. After the Second World War, TDK expanded its materials and component capabilities and began producing magnetic recording tape in the 1950s. The company entered the compact-cassette market in 1966. Its tapes became globally recognized, helping establish TDK as a consumer brand as well as an industrial supplier. During the following decades, it produced audio cassettes, videotape, optical discs and other blank recording media. The brand's consumer visibility was reinforced by extensive sports sponsorships and advertising, even as much of its underlying business remained focused on components supplied to other manufacturers. TDK opened a New York office in 1965 and began European operations from Frankfurt in 1970. In 1980, it developed multilayer manufacturing technology for chip capacitors and inductors. This technology supported the continuing miniaturization of electronics and became important in computers, mobile devices and other compact products. In 1986, TDK acquired SAE Magnetics, strengthening its position in magnetic recording heads. During the 1990s, its mass-storage activities expanded to spindle motors, magnetoresistive heads and thin-film heads. From the late 1990s onward, TDK gradually reduced its compact-cassette production as digital formats displaced analog recording. It participated in the development of Blu-ray Disc technology and remained active in data-storage media for a time, but sold the recording-media business to Imation in 2007. The transaction included a license allowing Imation to use the TDK Life on Record brand. That arrangement ended in 2015, completing TDK's retreat from most consumer-branded recording media. TDK also divested its semiconductor division in 2005 and discontinued an experimental video-game publishing and distribution presence that had operated through TDK Mediactive and TDK Core. Since the 2000s, the company has concentrated on electronic components, magnetic heads and suspensions, power supplies, batteries and sensors. Acquisitions became a central part of this repositioning. Amperex Technology expanded its lithium-polymer battery capabilities in 2005, while the acquisition of Lambda's power-supply businesses added power electronics. The 2008 purchase of German component maker EPCOS broadened TDK's passive-component and electronic-device portfolio. Later additions included Hutchinson Technology, Micronas, RF360, ICsense, InvenSense, Chirp Microsystems, Faraday Semi and Qeexo. These transactions extended TDK into automotive sensing, MEMS, ultrasonic time-of-flight sensing, custom ASICs, embedded artificial intelligence and miniature power-conversion products. TDK's current business is organized around technologies used in increasingly connected, electrified and miniaturized systems. Its products support consumer devices, vehicles, industrial machinery, communications, robotics, drones, medical equipment and energy systems. The company continues to draw on its original expertise in magnetic materials while combining it with ceramics, semiconductors, batteries, MEMS and software-enabled sensing. It remains listed on the Tokyo Stock Exchange and is included in major Japanese equity indexes. Alongside its commercial activities, TDK maintains public cultural and educational initiatives, including the TDK History Museum in Akita and music programs in Japan.
- 2023
Qeexo is acquired
[1]The acquisition added embedded artificial-intelligence and TinyML capabilities to TDK's sensing portfolio.
- 2018
TDK expands into ultrasonic sensing and miniature power conversion
[1]Chirp Microsystems and Faraday Semi added low-power ultrasonic time-of-flight sensing and point-of-load DC-DC conversion.
- 2017
Sensor, ASIC and radio-frequency capabilities broaden
[1]TDK acquired or partnered with ICsense, InvenSense and RF360, adding custom ASICs, MEMS sensors and RF technologies.
- 2016
Hutchinson Technology and Micronas join TDK
[1]These acquisitions expanded TDK's HDD suspension, sensor and semiconductor capabilities.
- 2008
EPCOS is acquired
[1]The German electronic-device manufacturer became an important part of TDK's passive-component and materials portfolio.
- 2007
Recording-media operations are sold to Imation
[1]The transaction marked a major shift away from consumer recording media toward electronic components and industrial technologies.
- 2005
Battery and power businesses expand
[1]TDK acquired Amperex Technology and Lambda's power-supply businesses, broadening its rechargeable-battery and power-electronics activities.
- 1986
SAE Magnetics is acquired
[1]The acquisition strengthened TDK's capabilities in high-density magnetic recording heads.
- 1980
Multilayer chip-component technology is developed
[1]TDK developed multilayering technology for chip capacitors and inductors, supporting the miniaturization of electronic equipment.
- 1970
European operations begin
[1]TDK established a European office in Frankfurt, West Germany.
Products and positioning
A global materials-driven electronic-components and energy-technology supplier, combining magnetic-materials expertise with miniaturized passive components, sensing, power management and battery technologies.
Passive electronic components · 1980
Multilayer ceramic capacitors
TDK's multilayer ceramic capacitors are compact components used for filtering, decoupling, energy storage and signal stabilization. They are deployed across smartphones, computers, automotive electronics, industrial systems and communications equipment. Their development is tied to TDK's multilayer manufacturing expertise and the broader industry trend toward smaller, denser electronic assemblies.
Magnetic and passive components · 1935
Inductors and ferrite components
Inductors, ferrite beads, cores and related magnetic components represent a direct continuation of TDK's original materials expertise. They are used for noise suppression, filtering, electromagnetic compatibility, power conversion and signal management in consumer, automotive and industrial equipment.
Sensors
Sensors and MEMS devices
Through its own development and acquisitions, TDK supplies motion sensors, accelerometers, microphones, ultrasonic time-of-flight sensors and other MEMS-based devices. These products support mobile equipment, augmented and virtual reality, robotics, drones, industrial automation, automotive systems and Internet-of-Things applications.
Power electronics · 2005
Power supplies and converters
TDK provides power supplies, DC-DC converters and related power-management products for electronic equipment. The portfolio includes miniature point-of-load solutions and larger industrial and system-level products, serving communications, computing, factory automation, medical equipment and other applications.
Batteries and energy storage · 2005
Rechargeable batteries
TDK's battery activities include rechargeable battery technologies and systems used in portable electronics, industrial equipment and energy-related applications. The company's expansion in this field was reinforced by its acquisition of Amperex Technology and by continued work in materials, cells and energy-storage systems.
Data-storage components · 1986
Hard-disk-drive heads and suspensions
TDK develops magnetic recording heads, thin-film and magnetoresistive technologies, spindle-related components and suspension assemblies for hard-disk drives. SAE Magnetics, Headway Technologies and Hutchinson Technology contributed to this specialist mass-storage portfolio.
Recording media · 1952
Magnetic recording media
TDK historically produced audio cassettes, videotapes, magnetic computer media, optical discs and other blank recording products. Compact cassettes became particularly associated with the brand, but the recording-media business was sold to Imation in 2007 and TDK later withdrew its consumer licensing arrangement.
Marketing campaigns
- 2024McLaren Formula E and sim-racing partnership
International
TDK became an official technology partner of the McLaren Formula E Team and McLaren Shadow F1 Sim Racing Team, linking the brand with electrified motorsport and digital competition.
Outcome. Expanded technology-focused motorsport positioning
- 2001TDK Orchestra Concerts
Japan
TDK began supporting performances by distinguished orchestras in Japan and supplemented the program with outreach concerts, rehearsals and invitations intended to broaden access to classical music.
Outcome. Ongoing cultural and educational association
- 1993Crystal Palace sponsorship
United Kingdom
TDK sponsored English football club Crystal Palace from 1993 to 1999 during several promotion and Premier League campaigns.
Outcome. Strengthened UK sports-brand exposure
- 1983World Athletics Championships sponsorship
International
TDK became a sponsor of the inaugural World Athletics Championships in Helsinki and continued its association with the event and the international athletics community.
Outcome. Long-running global brand-visibility program
- 1980Ajax football sponsorship
Europe
TDK sponsored Dutch football club Ajax during the 1980s, including the period in which the club won the UEFA Cup Winners' Cup in 1987.
Outcome. Increased European consumer visibility
Brand decisions
2017
Build-out of a sensor and embedded-electronics portfolioStrategyBackground
TDK sought growth beyond traditional passive components and storage technologies in markets requiring sensing, power management, miniaturization and embedded intelligence.
Action taken
The company expanded through RF360, ICsense and InvenSense, adding radio-frequency products, custom ASICs and MEMS sensing capabilities.
Aftermath
The portfolio broadened toward mobile, automotive, industrial, robotics, augmented-reality and Internet-of-Things applications.
2015
Withdrawal from licensed consumer mediaStrategyBackground
The market for branded physical recording media had contracted substantially as digital and online storage became dominant.
Action taken
TDK accepted the ending of Imation's license to sell TDK-branded recording and audio products.
Aftermath
Imation stated that it would stop selling TDK-branded products by the end of 2015, removing most remaining consumer recording-media activity from the TDK business.
2007
Exit from recording mediaM&ABackground
Digital recording and storage formats were reducing the strategic importance of physical consumer media, while TDK was increasing its emphasis on components and industrial technologies.
Action taken
TDK sold its recording-media business to Imation, including flash, optical and magnetic media operations and a license for TDK-branded products.
Aftermath
The transaction accelerated TDK's repositioning toward components, batteries, sensors, power supplies and other business-to-business technologies.
Transaction value. $300 million (2007)
Recent events
TDK announces CUR 3020 current sensor IC[4]
Reported:
TDK Corporation announced the Micronas CUR 3020, a customer-programmable linear Hall-effect current sensor IC optimized for use with a C-core concentrator.
TDK introduces Micronas HAR 3025 dual-die motor position sensor[5]
Reported:
TDK Corporation introduced the Micronas HAR 3025, a dual-die, stray-field-robust motor position sensor with analog sine/cosine output designed for automotive and industrial safety-critical applications such as electric power steering and x-by-wire motor control. The sensor is defined as SEooC ASIL D ready according to ISO 26262:2018; samples are available now and start of production is planned for the first half of 2027.
TDK acquires assets from OQmented to advance AR display technologies[6]
Reported:
TDK Corporation announced it has acquired assets from OQmented (legal name: Kiitz Technologies GmbH), a German company specializing in MEMS-based laser beam scanning and advanced display technologies. The acquisition adds intellectual property, engineering know-how, and MEMS-based laser beam scanning technology to strengthen TDK's AR display business, TDK AIsight, and supports its strategy to build a vertically integrated light engine platform for smart glasses.
TDK launches TDK SensEI edgeRX Pro sensor module[7]
Reported:
TDK Corporation announced the launch of the TDK SensEI edgeRX Pro, a high-performance sensor node that expands its edgeRX predictive maintenance platform, integrating vibration, acoustic, magnetic, temperature, and rotational motion sensing with edge AI processing.
- Unconfirmed
TDK to acquire Fabric8Labs[8]
Reported:
Fabric8Labs, an electrochemical 3D printing company, agreed to be acquired by Japanese multinational technology company TDK Corporation for undisclosed terms. TDK had been an investor in Fabric8Labs for several years and the two companies had collaborated on product development. The acquisition is subject to regulatory approval later this year, after which Fabric8Labs will continue to operate as a TDK subsidiary.
TDK introduces InvenSense Product Longevity Program[9]
Reported:
TDK announced the InvenSense Product Longevity Program, which applies to all SmartIndustrial components and newly introduced SmartAutomotive components and commits to making covered products available for a minimum of 10 years from product launch.
TDK introduces three SmartSound MEMS microphones[10]
Reported:
TDK introduced three MEMS microphones in its SmartSound family: T5919, T4086 and T3903. The products are intended for mobile, IoT and other consumer devices.
TDK upgrades HAL 37xy sensor family to ASIL B-ready[11]
Reported:
TDK upgraded its HAL 37xy direct-angle sensor family for functional-safety applications; the family members are now defined as SEooC ASIL B-ready according to ISO 26262.
TDK announces two MEMS motion-tracking solutions[12]
Reported:
TDK announced the availability of the InvenSense ICM-40627 and ICM-42688-V MEMS motion-tracking solutions, which bundle six-axis IMUs with dedicated software libraries. The source says the products would be available from distributors in February 2021.
TDK launches MDF1005 noise suppression filters for in-vehicle PoC[13]
Reported:
TDK announced the launch of its MDF1005 series of noise suppression filters for in-vehicle PoC applications. Mass production was scheduled to begin in December 2020.
Showing the 10 most recent.
Sources22 sources
- 1TDKen.wikipedia.org
- 2TDK official global websitetdk.com
- 3McLaren announces TDK technology partnershipmclaren.com
- 4TDK宣布推出CUR 3020电流传感器ICeejournal.com
- 5TDK推出Micronas HAR 3025双芯片电机位置传感器eejournal.com
- 6TDK收购OQmented资产以推进AR显示技术eejournal.com
- 7TDK发布TDK SensEI edgeRX Pro传感器模块eejournal.com
- 8TDK 将收购 Fabric8Labssdbj.com
- 9TDK 推出 InvenSense 产品长期供应计划eejournal.com
- 10TDK 推出三款 SmartSound MEMS 麦克风eejournal.com
- 11TDK将HAL 37xy传感器系列升级为符合ASIL B-ready要求eejournal.com
- 12TDK宣布推出两款MEMS运动追踪解决方案eejournal.com
- 13TDK推出用于车载PoC的MDF1005噪声抑制滤波器eejournal.com
- 14高通与TDK围绕RB5平台开展战略合作business-standard.com
- 15TDK宣布InvenSense ICM-42688-P运动传感器上市eejournal.com
- 16TDK暂停山形县工厂运营stock.jrj.com.cn
- 17TDK推出工业应用InvenSense惯性测量单元系列rfidworld.com.cn
- 18高通宣布收购RF360控股公司rfidworld.com.cn
- 19TDK推出CH-101超声波ToF传感器rfidworld.com.cn
- 20高通发布全球首个支持5G和AI的机器人平台finance.sina.com.cn
- 21TDK announces expansion of TDK SensEI edge intelligence portfolio with launch of edgeRX Pro sensor moduleprnewswire.com
- 22TDK announces worldwide availability of a new generation of MEMS barometric pressure sensor platformeejournal.com
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