Asahi Kasei Microdevices

Corporate Profile

We provide devices and functions that are essential for the manufacturing processes and final products of our customers, through our innovative development, design, and production technology coupled with a robust marketing network. We will continue to build on our established presence to maintain industry leadership in the electronics field.

Products and businesses

Contact Us

Trade name Asahi Kasei Microdevices Corp.
Main businesses Hall elements, LSIs
Home office Hibiya Mitsui Tower, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo 100-0006 Japan
President Hideyuki Shinomiya
Paid-in capital ¥3,171 million
Shareholder Asahi Kasei Corp.
Phone +81-(0)3-6699-3933

(as of April 1, 2023)


Hideyuki Shinomiya President & Representative Director,
Presidential Executive Officer
Naoyuki Kurita Director, Senior Executive Officer
Hideyuki Yamagishi Director
Satoshi Takehara Executive Officer
Nobuaki Hashimoto Executive Officer
Kosuke Suganuma Corporate Auditor
Kana Ito Corporate Auditor

(as of July 1, 2024)

Major Subsidiaries and Affiliates


AKM Semiconductor, Inc. Sale of LSIs


Asahi Kasei Microdevices Europe GmbH Electronic devices marketing and technical support


Senseair AB Provision of sensing solutions; development, manufacture, and sale of gas sensor modules


Asahi Kasei Microdevices Korea Corp. Electronic devices marketing and technical support


Asahi Kasei Microdevices (Shanghai) Co., Ltd. Electronic devices marketing and technical support


Asahi Kasei Electronics Co., Ltd. Hall elements
Asahi Kasei Microsystems Co., Ltd. LSIs
Asahi Kasei Technosystem Co., Ltd. Oil leak detectors and other industrial systems