Company Profile

About AKM

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

AKM stands for Asahi Kasei Microdevices Corporation.

Logo Asahi Kasei - AKM

(as of April 01, 2024)

Trade name

Asahi Kasei Microdevices Corporation

Head office

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


Hideyuki Shinomiya

Paid-in capital

JPY 3,171 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


Asahi Kasei Microdevices Corporation


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


Electronic equipment operations of San Denshi Industry are spun off as Asahi Kasei Technosystem Corporation


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 (Currently known as AKM TECHNOLOGY Corporation)


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 Germany (Dusseldorf, Germany)


Acquisition of Senseair

Asahi Kasei Microdevices Corp.

Marketing & Sales Center Administration Dept.

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

TEL +81-3-6699-3943

Asahi Kasei Microdevices (Shanghai) Co., Ltd.

Room103, BLK6, REEB1987 center, No.91 Yimei Road, Minhang, Shanghai, China

TEL +86-21-6391-5500

Asahi Kasei Microdevices (Shanghai) Co., Ltd. Shenzhen Branch

Room 901-902, Building T7, Qianhai Kerry Centre, Qianhai Avenue, Qianhai Shenzhen-Hong Kong Cooperation Zone, Nanshan District, Shenzhen, 518052, China

TEL +86-755-2360-7330

Asahi Kasei Microdevices (Shanghai) Co., Ltd. Beijing Branch

Suite 2011, Gemdale Plaza, 91 Jianguo Road, Chaoyang District, Beijing, China 100022

TEL +86-10-6569-3939

Asahi Kasei Microdevices Korea Corp.

Marketing & Sales Center Administration Dept.

19F, One IFC, 10, Gookjegeumyoong-Ro Yeouido-Dong, Yeongdeungpo-Gu, Seoul 07326, Korea

TEL +82-2-3775-0990

AKM Semiconductor, Inc.

6541 Via Del Oro Suite D, San Jose, CA 95119, USA

TEL +1-408-436-8580

Asahi Kasei Microdevices Europe GmbH

Fringsstraße 17, 40221 Düsseldorf, Germany

TEL +49 (0) 211 33 99 2000

Senseair AB

Stationsgatan 12, 82471 Delsbo, Sweden

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.

Gas Sensors Gas Sensors

NDIR gas sensors featuring high precision, low power consumption, high reliability, and a small package. Various solutions such as CO2 sensors, flammable gas sensors, and alcohol sensors are provided in accordance with customer needs. They contribute to energy saving in homes and vehicles, and contribute to the safety by detecting refrigerant leaks and preventing drunk driving.

Semiconductors Semiconductors

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.

Asahi Kasei Microdevices (AKM) operates an electronic components business as a member of the Asahi Kasei Group's material sector. AKM provides customers with unique products by combining the compound semiconductor technology mainly used for magnetic sensors with the ASIC/analog circuit technology based on silicon semiconductors.

In recent years, anticipating the needs of the IoT era, we are proposing sensing solutions incorporating software technology and invisible optics solutions that utilize compound material technology.

Our products and solutions with these features are expanded over a wide range of fields, including mobile communication devices and consumer products as well as automotive electronics devices, household equipment, and industrial equipment.

We have always been guided by the needs of our customers and end-users and we will work together with customers to achieve the solutions that truly meet the needs of the customers and end-users.

We look forward to continuing to serve customers with superior AKM products.

Hideyuki Shinomiya


Asahi Kasei Microdevices Corporation

Hideyuki Shinomiya  President  Asahi Kasei Microdevices Corporation


Be a Connector.

Diversity creates value.

When you bring different things together, the result is innovation and ideas the world has never seen.

Doing the expected leads to expected results.

Change is not linear.

It can be uncomfortable.

Being different takes a commitment.

To see the value in diverse perspectives.

To see the new possibility in combining technologies.

To put companies together that drive innovation.

We believe in the power of different.

It’s how we’ve always operated.

We combine ideas in a way that turns differences into strength.

And aim for new solutions that help move the world forward.



To expand the realm of perception by combining technologies.

We will expand the limits of what people can experience, with breakthrough ideas that combine technologies, and implement innovation that grows the possibilities of perception.


1. Start with the unknown.

Innovation allows you to break new ground. So, when you find an unprecedented idea, it’s not a reason to believe you can’t do something. It’s the starting line.

2. Think as you go.

No matter the type of work, just start trying. Consider your approach on the fly as you work. Being able to stay free and flexible, without being held back by rules or theories is our unique strength as an independent company.

3. Change is evolution.

Change means leaving behind the way things have been done. After you move past uncertainty, new discoveries await. Being able to evolve starts with change. Change isn’t something to fear. Enjoy it. That’s our mindset.

4. Combine differences.

When you combine different things, you often get surprising results. It’s how you create value that never existed before. Bringing together different people, technologies or companies is how we operate. Having compact, agile and diverse businesses is our strength.

5. Challenge relentlessly.

Pursue every challenge our partners face with tenacity and care until the job is done. Refusing to give up, with optimism, is our DNA.

Asahi Kasei Group Philosophy

Group Mission

What is our basic purpose?

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

What direction are we headed in?

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

The character of Asahi Kasei

Sincerity - Being sincere with everyone.
Challenge - Boldly taking challenges, continuously seeking change.
Creativity - Creating new value through unity and synergy.

These are the shared values that must be held by the people who work in the Asahi Kasei Group. They define our fundamental approach in the process of pursuing our Group Mission, held in common among our diverse range of personnel.

Group Slogan

We always imagine the world of tomorrow, and envision what needs to be created.

Group Slogan

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."

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

Logo 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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