Company

Greetings

  • Sohwa & Sophia Technologies Inc.
    CEO Masakazu Shiota

  • Thank you very much for your continued patronage.
    Our company is a manufacturer that has been providing engineering and solutions for electronics device development since its founding in 1983.
    We were founded during the growth period of the electronics industry, and by constantly exploring new technologies, we have overcome many difficult business environments.
    Starting with printed circuit board design at the time of our founding, we have grown into contract development of electronic devices, providing engineering solutions, and developing, producing, and selling electronic devices.
    This has only been possible thanks to the support of not only our loyal customers, but also our affiliated companies.
    We believe that the future will bring many challenges, including a rapidly changing global environment, further technological innovation, and social issues.
    However, with a renewed sense of curiosity and constant effort, we will continue to strive to provide services that will please our customers and contribute to a safe and secure society, guided by our management philosophy of bringing ""peace of mind"" and ""joy"" to people's lives.
    We hope to receive your continued patronage.

Corporate Philosophy

Corporate Philosophy

We contribute to the development of “MONODZUKURI(*)” to bring a world Comforts and Happiness through our advanced technologies and productive personality.

(*) “MONODZUKURI” means manufacturing in Japanese and an art of making goods that help to improve the lives of people.

Mindset

  • We aim to coexist with all people involved, continuously deliver excellent products, and become an engineering solution provider respected worldwide.
  • Continue to hold onto 'dreams' and 'romance' for tomorrow, and with 'strong will' and 'passion,' surely bring them to 'fruition.' Furthermore, pass these on to the next generation and build a 'history of evolution.'
  • We will rapidly conduct 'research' and 'analysis' of the technologies that our customers are likely to demand in the future, build a flexible execution system, and continue to be pioneers who contribute to our customers.
  • Always striving for self-improvement, one should make continuous efforts to learn the 'path of human development' through 'communication with customers,' 'the attitudes of predecessors,' and 'books.'

Corporate profile

Trade name Sohwa & Sophia Technologies Inc.
Establishment April 1, 1983
Capital JPY 497.5 million
Number of Employees 131 (as of April 1, 2025)

CEO & COO

Masakazu Shiota
Location
  • 6-2 Minamikurokawa, Asao-ku, Kawasaki-shi, Kanagawa-ken, Japan

    Access by train
    Odakyu Tama Line, get off at Kurokawa Station, in front of the station
    Keio Sagamihara Line, get off at Wakabadai Station, 10-minute walk

    Map (Google Maps)

Main
Businesses

Development and Sale of Products for R&D engineers
・Microprocessor development tools
・Training tools for educational institutions
・Personal Analyzers
・Parts Library Management Software
・Board Data Drawings Inspection Software
・Board Design Technical Training Software


Development and Manufacturing Services
・Embedded / Evaluation Board Development and Mfg
・Electronic Circuit Design, Board Design & Mfg
・SI/PI/EMI/Electromagnetic Field Simulation
・FPGA Design
・OS Porting, Firmware Development
・Driver, Middleware, Application Development
・Product Evaluation / Debugging
・OEM/ODM

Affiliation Association Japan Electronics Packaging and Circuits Association
History

2025  Obtained ISO 27001 (Information Security) certification.
         Relocate the Tohoku branch office within Fukushima City.
2020  Changed the parent company's name to Kuroda Group Co., Ltd. 2014  Moved Nagoya Branch to Kariya,Aichi

2013  Merged Sophia Systems Co., Ltd.
         Changed trade name to Sohwa & Sophia Technologies inc.  
2011  Merged INGDESIGN Co.,Ltd
2010  Moved headquarters to Asao-ku, Kawasaki
2009  Acquired 100% share of Sophia Systems Co.,Ltd (Kawasaki)  
2008  Capital Tied-up with Kuroda Electric Co.,Ltd
         Established Kansai Office in Osaka.
         Increased capital to 497.5 million yen
2007  Acquired 100% share of INGDESIGN Co.,Ltd (Yokohama)  
         Increased capital to 490 million yen
         Established Nagoya Branch in Ichinomiya.
         Closed Tokai Office
         Merged SAITO Co.,Ltd
2006  Acquired 100% share of SAITO Co.,Ltd (Ogaki-shi, Gifu)
2003  Established Tokai Office in Nagoya
2002  Increased capital to 1,015 million yen
2001  Increased capital to 190 million yen
1999  Changed trade name to SOHWA CORPORATION
1998  Increased capital to 70 million yen
1997  Completed new Bldg for Kyushu Branch in Fukuoka.
1993  Moved headquarters to Kohoku-ku, Yokohama
         Established Kyusyu Branch in Fukuoka.
1988  Completed new Bldg for Tohoku Branch in Fukushima.
1985  Changed to SOHWA DESIGN Co.,Ltd
1984  Established Tohoku Branch in Fukushima.
1983  Established SOHWA DESIGN Ltd at Nakahara-ku, Kawasaki (Capital: 4 million yen)

Corporate profile Download Corporate profile

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Branch

Tohoku Branch
  • Hakuai Building, 1st Floor, 20-7 Otamachi, Fukushima-shi, Fukushima-ken, Japan

    Access
    7-minute walk from JR Fukushima Station West Exit

    Map (Google Maps)
Kyushu Branch
  • 3-18-23 Yoshizuka, Hakata-ku, Fukuoka-shi, Fukuoka-ken, Japan

    Access
    JR Hakata Station Chikushiguchi
    Take the bus from JR Hakata Station Bus Center (Platform 14) (about 10 minutes)
    Get off at 'Toyoi 1-chome' (3-minute walk)

    Map (Google Maps)
Nagoya Branch
  • 2-22 Minamisakuramachi, Kariya-shi, Aichi-ken, Japan

    Access
    JR Tokaido Main Line / Meitetsu Mikawa Line, 7-minute walk from Kariya Station South Exit

    Map (Google Maps)

Kuroda Group Quality/
Environmental Policy

Environmental Activities (Kuroda Group Co., Ltd.)

Kuroda Group Information Security Policy

Information Security Policy (Kuroda Group Co., Ltd.)

Kuroda Group's Sustainability Certification

Certification(Kuroda Group Co., Ltd.)