AKM Semiconductor – Mixed-signal IC
“AKM – Asahi Kasei Microdevices designs and manufactures CMOS mixed signal integrated circuits for applications including audio, multimedia, data storage, and telecommunications.”

Other Products – Touchscreen Controllers, Clock Generators.
Semiconductor magnetoresistive element (SMRE)
“Since a Sn doped single crystal film InSb is used as a material for the sensing element, the element has excellent magnetoresistive temperature characteristics and very small neutral voltage temperature drift. This element is mainly used for detection of gear rotation.”
Principle of operation of Hall effect IC
Detects a magnetic field and output analog/digital(IC) signal proportional to the intensity of the magnetic field. used for non-contact type switches, rotation detection, and position detection.
The Hall effect IC consists of Hall element and signal conditioning circuitry to convert the Hall element output into a digital output.
Asahi Kasei Microdevices Corp.
1-105 Kanda Jinbocho, Chiyoda-ku, Tokyo 101-8101 Japan
