ROHM Co., Ltd.

ROHM Co., Ltd., operating under the brand name ROHM Semiconductor, is a Japanese electronic parts manufacturer headquartered in Kyoto, Japan. Established in 1958, the company's mission is to contribute to the advancement and progress of culture and society through the consistent supply of high-quality products and precision manufacturing. It aims to solve social issues through electronics, particularly focusing on power and analog solutions that enable energy savings and miniaturization in various applications.

ROHM Semiconductor's product portfolio encompasses a wide range of integrated circuits (LSIs including analog, logic, and memory), discrete semiconductors (such as transistors, diodes, power devices, optoelectronics like LEDs, and semiconductor lasers), and modules (including print heads and optical modules). The company places a significant emphasis on advanced power and analog solutions, including Silicon Carbide (SiC) and Gallium Nitride (GaN) technologies. These components serve critical market segments including automotive (especially electric vehicles), industrial equipment, consumer electronics, computing, and communications.

Katsumi Azuma assumed the role of President and CEO on April 1, 2025. In recent developments, ROHM has been engaged in discussions regarding a potential business integration of power semiconductor operations with Toshiba Electronic Devices & Storage Corporation and Mitsubishi Electric Corporation, with a memorandum of understanding signed in March 2026. Concurrently, Denso Corporation withdrew its acquisition proposal for ROHM in April 2026, though both companies continue to explore collaboration in automotive semiconductor technologies. The company reported a consolidated net loss for fiscal year 2024, its first in over a decade, attributed to decreased demand for EV power semiconductors and market shifts, but anticipates a recovery in fiscal year 2025. ROHM continues to innovate, recently launching 5th Generation SiC MOSFETs in April 2026, reinforcing its focus on high-efficiency power devices for evolving markets.