Company Profile

Photo:Office building

Circuit Design is a leading design and manufacturing company of low power radio products. Circuit Design designs and supplies low power narrow-band standard radio modules for short-range applications. Our RF modules are designed to serve customers in fields such as Telecommand and Telecontrol, Telemetry, and in the Alarm market where high reliability is required for industrial applications. Circuit Design's quality system is certified by ISO9001. Circuit Design's corporate objective is to enhance customer reliability and competitiveness in their radio link applications by providing the necessary narrow band products.


Company name Circuit Design, Inc.
Address 7557-1, Hotaka, Azumino-city, Nagano, 399-8303, Japan
Phone ++81-263-82-1024
Facsimile ++81-263-82-1016
E-mail Contacts (Regard to E-mail, send mail accepted form)
Established April 1,1974
Paid up capital in Yen Yen 70,000,000
Chairman Kazuo Maruyama
President Yukinaga Koike
Number of employees 52 (Engineers: 24)
Annual turnover Yen 2,092,000,000 (FY 2022)
Business field Remote vehicle engine starters, wireless microphone systems,
radio modules and other short-range radio products designed for customers (OEM).
German sales office Circuit Design GmbH, Munich
Distribution of RF modules in Europe
Domestic subsidiary CD Trading Co., Ltd.
Sales of remote vehicle engine starters in Japan