Company Profile


We, Asahi Kasei Microdevices (AKM) offer a variety of advanced sensing devices based on compound semiconductor technology and sophisticated IC products featuring analog/digital mixed-signal technology.

Company Profile

(as of June 01, 2020)

Trade name

Asahi Kasei Microdevices Corporation

Home office

Hibiya Mitsui Tower 1-1-2 Yurakucho, Chiyoda-ku, Tokyo 100-0006 Japan


Eiji Honda

Paid-in capital

JPY 3,271 million

Main businesses

Hall elements, ICs

Main Affiliates


Asahi Kasei Technosystem Co., Ltd.

AKM Technology Corporation

Asahi Kasei Electronics Co., Ltd.

Asahi Kasei Microsystems Co., Ltd.


AKM Semiconductor, Inc.

Asahi Kasei Microdevices Europe GmbH

Asahi Kasei Microdevices Korea Corporation

Asahi Kasei Microdevices (Shanghai) Co., Ltd.

Senseair AB


Access from the nearest stations

Hibiya subway station: direct passage
Yurakucho subway station: 4 min. on foot
Ginza subway station: 5 min. on foot
JR Yurakucho station: 5 min. on foot



Miyazaki Electronics Co., Ltd founded as a subsidiary of Asahi Kasei Corporation, started hall sensor business


Miyazaki Electronics renamed to Asahi Kasei Electrionics ("AKE")


Asahi Kasei founded Asahi Microsystems as a 50:50 JV with AMI, started IC business


Established LSI Design Center


Turned Asahi Microsystems to a 100% subsidiary of Asahi Kasei Corp, renamed to Asahi Kasei Microsystems ("AKM")

AKE Fuji fabrication facility started its operation


AKM Nobeoka wafer fabrication facility started its operation


Established AKM Semiconductor Inc. (San Jose, USA)


Opened a office in Europe


Established Asahi Kasei Technosystem, started system business


Established Asahi Kasei EMD Corp by transfering electronics business of Asahi Kasei Corp


Opened a office at Shanghai, China


AKE Fuji fabrication facility (fab3) started its operation

Opened Miyazaki Design Center (Established AKM Kyusyu)


AKE and AKM integrated business with Asahi Kasei EMD Corp

Opened a office at Seoul, Korea


Establiched a local subsidiary in China (Shanghai, China)


Transferred electronics material business to Asahi Kasei e-Materials, renamed Asahi Kasei Microdevices Corporation ("AKM")

Established a local subsidiary in Taiwan (Taipei, Taiwan)


Established a local subsidiary in Germany (Dusseldorf, Germany)


Acquisition of Senseair

Global Network (AKM Offices)

Business Domains



Our advanced mixed-signal LSIs feature low power consumption, high speed, and high precision. Mixed-signal LSIs play an essential role in bridging the gap between the analog information of the natural world and the digital information of electronic systems. 

Applications range from mobile communications including smartphones to automobiles, industrial equipment, and infrastructural equipment. 

The electronic compass, an advanced product which combines magnetic sensors and LSIs in a single device, finds widespread use in smartphones and other portable devices.

Magnetic sensors

Magnetic sensors

Hall elements are high-performance magnetic sensors used for control of brushless motors in optical disc drives and air conditioner fans, for image-stabilization mechanisms in digital cameras and smartphones, as well as many other areas. 

Hall ICs, comprising a combination of Hall elements and signal processing circuits, are used for mobile phone open/close detection switches and automobile power windows. 

Utilizing the thin-film compound semiconductor technology gained through experience in magnetic sensors, we are developing infrared (IR) sensors with smaller size for an expanding range of applications.

Our Vision

CEO Message

Asahi Kasei Microdevices (AKM) traces its roots to the 1980s, when the Asahi Kasei Group began developing its semiconductor business. Since then, we have continued to grow by providing customers with unique products which combine elements based on compound semiconductor technology used for magnetic sensors with ASIC technology based on silicon semiconductors. In recent years, we are making new proposals to meet the needs of the IoT era by focusing particularly on sensing and voice solutions incorporating software technology, as well as various solutions of invisible optics utilizing compound semiconductor technology. 

Among individual products, our magnetic sensors for controlling motor rotation, and our audio & voice ICs that provide high-quality sound with low power consumption, have gained strong recognition among customers around the world, and azimuth angle sensors (e-compasses) that are essential for mobile devices such as smartphones and tablets are also widely known as a product practically originated by AKM. Moreover, AKM has continued to provide unique products to customers such as sensor devices and motor driver ICs used in image stabilization and autofocus systems for cameras, infrared sensors featuring ultra-small size and fast response for static human detection and CO2 detection—all combining packaging, software engineering, testing, and implementation support technology in addition to circuit technology and material technology.

In addition to products for mobile communications and consumer electronics, we are also expanding in the fields of automotive electronics, residential equipment, and industrial equipment. AKM continues to advance while keeping track of the latest information in the semiconductor industry for the Asahi Kasei Group as a comprehensive manufacturer centered on chemistry, working in coordination with other business units of Asahi Kasei to propose innovative new value.

Throughout our history of development and growth, we have always been guided by the needs of our customers and end-users, and we remain committed to working together with you to achieve the solutions that truly meet your requirements and those of your customers. We look forward to continuing to serve you with superior AKM products.

Eiji Honda


Asahi Kasei Microdevices Corporation

Vision of Asahi Kasei Microdevices

“Our mission is to create new solutions and provide benefit to end-users using our devices.”

AKM believes that we can achieve our mission by providing end-users with new experience and value through our products and solutions. We contribute to life and living for people around the world based on the Asahi Kasei Group Values of “Sincerity,” “Challenge,” and “Creativity.”

Asahi Kasei Group Philosophy

Group Mission

We, the Asahi Kasei Group, contribute to life and living for people around the world.

This is the Asahi Kasei Group's unchanging reason for being. What we never cease to strive for, though the needs of society change throughout the ages. It is in our very nature, deriving from a sincere regard for the people of the world.

Group Vision

Providing new value to society by enabling “living in health and comfort” and “harmony with the natural environment.”

This vision for the Asahi Kasei Group indicates the direction in which our business activities advance based on our Group Mission to meet the needs of the times.

Group Values

Sincerity: Being sincere with everyone.

Challenge: Boldy taking challenge, continuously seeking change.

Creativity: Creating new value through unity and synergy.

Group Slogan

Creating for Tomorrow

The commitment of the Asahi Kasei Group:

To do all that we can in every era to help the people of the world make the most of life and attain fulfillment in living.

Since our founding, we have always been deeply committed to contributing to the development of society, boldly anticipating the emergence of new needs.

This is what we mean by “Creating for Tomorrow.”

Asahi Kasei Group

Centered on the operating holding company Asahi Kasei Corp. and six core operating companies, the Asahi Kasei Group operates in the three business sectors of Material, Homes, and Health Care.

Asahi Kasei

Asahi Kasei Corp. develops fiber products, chemicals, and electronic related materials based on its core technology of chemistry, and globally pursues growth opportunities in the areas where we can leverage our technological advantages. In its holding company function, Asahi Kasei Corp. focuses on strategic planning and analysis, administration of resources, oversight of management execution, and development of new businesses which extend beyond the scope of any single field of business.

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