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Company Mission
Quality is our top priority at all times. Our objective is to contribute to the advancement and progress of culture through a consistent supply, under all circumstances, of high quality products in large volumes to the global market.
Basic Management Policy
Secure reasonable profit through a concerted company-wide effort for a comprehensive quality assurance program.
Develop globally leading products by improving upon technologies held by each department for continued advancement of the company.
Maintain healthy and vigorous lifestyles and refine intellect and humanitarianism, hence contributing to society.
Search extensively for capable human resources and cultivate them as cornerstones for building long-term prosperity.
Corporate Overview
- Company Name
- ROHM Assembly Manufacturing Co., Ltd.
- Address
- 21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-0045 Japan
Note: This address is the registered head office location, which is the same as our parent company.
Manufacturing operations are conducted at the following plants. Please contact the plants in advance regarding site visits, deliveries, etc.
Kasaoka Plant
100 Tomioka, Kasaoka, Okayama 714-8585 Japan
Primary Products: Diodes, LEDs, Semiconductor Lasers
MAP
Hirokawa Plant
1164-2 Hiyoshi, Hirokawa, Yame-gun, Fukuoka 834-0111 Japan
Primary Products: Sensors, Transistors, Diodes, Printheads
MAP
Yukuhashi Plant
837-1 Inado, Hatakeda, Yukuhashi, Fukuoka 824-8555 Japan
Primary Products: ICs
MAP
Logistec Center
75 Masusaka, Kamogata-cho, Asakuchi, Okayama 719-0234 Japan
Primary Operation: Distribution Base
MAP
- Establishment
- April 1, 2026
- Paid-in Capital
- ¥450 million
- Number of Employees
- 731 (as of April 1, 2026)
- President
- President / Hirofumi Yoshioka
- Products
- LSIs, Transistors, Diodes, LEDs, Semiconductor Lasers, Sensors, Printheads
Group Companies
- ROHM Co., Ltd.
- ROHM Device Manufacturing Co., Ltd.
- ROHM Korea Corporation Daejeon Plant (Products: Transistors, Diodes, SiC Devices, IGBTs)
- ROHM Electronics Philippines, Inc. (Products: ICs, Sensors, Transistors, Diodes, Printheads, Resistors)
- ROHM Integrated Systems (Thailand) Co., Ltd. (Products: ICs, Transistors, Diodes, SiC Devices, IGBTs, Intelligent Power Modules, Optical Sensors, Resistors, Wireless Communication Modules)
- ROHM Semiconductor (China) Co., Ltd. (Products: Diodes, LEDs, Semiconductor Lasers, Optical Sensors, LED Displays)
- ROHM Electronics Dalian Co., Ltd. (Products: Optical Sensors, Printheads, Power Modules)
- ROHM Electronics (Malaysia) Sdn. Bhd. (Products: Transistors, Diodes, LEDs, LSIs)
Access
Kasaoka Plant
Hirokawa Plant
Yukuhashi Plant
Logistec Center
