About Us

Today’s society advances each and every day. Information electronic technology has advanced remarkably; new technology and new products arrive one after the other. This truly revolutionary change is occurring everywhere.
In this state-of-the-art field of information electronics, we at Miyoshi meet our customers’ needs and required speed by using our development, design, and manufacturing know-how that we have acquired over many years as an EMS, OEM, and ODM for various telecommunication products, custom-made boards, high-frequency modules, and sensor modules for the information telecommunication market.


Representative President and COO, Yasuhisa Maekawa
Established October 19, 1968
Capital ¥ 400 million
Number of employees 132 (As of March 31, 2023)
Settling term March
  • March, 2023:(Alone) ¥11.192 billion, (Consolidated) ¥18.324 billion
  • March, 2022:(Alone) ¥ 9.436 billion, (Consolidated) ¥16.535 billion
  • March, 2021:(Alone) ¥ 8.292 billion, (Consolidated) ¥13.801 billion
  • March, 2020:(Alone) ¥10.080 billion, (Consolidated) ¥16.231 billion
  • March, 2019:(Alone) ¥11.498 billion, (Consolidated) ¥17.005 billion
Our business Development and manufacturing of information telecommunication devices and semiconductor-related products
Head office Miyoshi Electronics Building, 3-13-21 Kushiro, Kawanishi-shi,
Hyogo, 666-0024, Japan
Tel: +81-72-756-1331
Fax: +81-72-758-7596


Tokyo branch office SK Building, 4-13-4 Hatchobori, Chuo-ku
Tokyo, 104-0032, Japan
Tel: +81-3-3206-0022


Hiroshima office 306, Higashisakeya-cho, Miyoshi-shi,
Hiroshima, 728-8511, Japan
Tel: +81-824-62-5111


Nagoya office 1-31 Aioi cho,Kariya-shi, Aichi,
448-0027, Japan
Tel: +81-566-45-5353


Affiliated companies
  • Wave Technology Inc.
    Contracted design and development of electronic devices and information telecommunication devices
  • MEC.i Inc.
    Repair and maintenance of all kinds of electronic devices
  • Synergy Technica Co.
    Design, manufacturing, and testing of electronic device products and information telecommunication products
Page top