Company Introduction


Founded in 1977, the LSI (Large Scale Integrated Circuit) design company Sanei Hytechs Co., Ltd. has pursued state-of-the-art LSI design technology from the time LSI were first created.
We operate a consignment design business in which we design LSI planned by the customer and provide the completed design data to the customer.
More than 90% of our employees are engineers, and many people join with the intent of working in design and development positions. Employees work in their regular clothes and with a flextime system.

Work After Hiring

For the first 6 months after joining the company, new hires join in group training, followed by on the job training (OJT) for the first 6 months after assignment to their position, for a total 1 year new hire training program.
New hires will learn design techniques and acquire a foundation as a technician through semi-annual group training.
During the group training period, position assignment will be determined according to each person's ability, aptitude, and aspiration. After assignment, employees are put in charge of work with senior employees and further master design skills as part of their actual work (OJT).
Employees will continue to build design experience and learn cutting-edge technologies and grow as engineers.

Company Profile

Name SANEI HYTECHS co., ltd.
Founding November 1977
Incorporation December 1983
Capital ¥302,400,000
Representative Yoshihiro Mabuchi President and CEO
Sales ¥3,220,000,000 (Fiscal year ended March 2019)
Employees 377 (306 males, 71 females) (As of April 2019)
Average Age 36.4 years old (As of April 2019)
Ratio of engineers 90%


LSI Design and Development

  • Analog Circuit Design / Verification
  • Digital Circuit Design / Verification
  • Layout Design / Verification
  • Device Evaluation
  • Library Development
  • LSI Design Support System Construction

Software Development

  • Embedded Software Development
  • Third Party Software Verification
  • Business Software Development
  • Application Development
  • Web System Development

IT Services and Product Sales

  • IT Infrastructure Design / Maintenance
  • Network Design / Maintenance
  • QNAP Agency

System Development / Product Design

  • PLD and FPGA Design
  • System Verification
  • Electrical Circuit Design / Trial Production / Verification
  • Enclosure Design / Trial Production / Verification


Head Office

311-3 Koyasu-cho, Higashi-ku, Hamamatsu-shi, Shizuoka, 435-0015, Japan

Tokyo Design Center

Innotech Building 10F, 3-17-6 Shinyokohama, Kohoku-ku, Yokohama-shi, Kanagawa, 222-0033, Japan

Kansai Design Center

Shin-Osaka Trust Tower 14F, 3-5-36 Miyahara, Yodogawa-ku, Osaka-shi, Osaka, 532-0003, Japan

Nagoya Office

10th Fl. Global Gate 4-60-12 Hiraike-cho, Nakamura-ku, Nagoya-shi Aichi, 453-6110, Japan

Hamamatsu Satellite office

B area 9th Fl. Hamamatsu Ekinan Bldg. 350-5 Sunayama-cho, Naka-ku, Hamamatsu-shi, Shizuoka, 430-0926, Japan

Main Clients

More than 20 major semiconductor manufacturers

Business Philosophy

With our advanced technology and rich human nature, we aim for harmony between a fulfilling life and corporations, and strive to contribute to the development of society.