Omron Scientific Technologies Executive and Leadership Team

July, 2026

Leadership Overview

Omron Scientific Technologies has 11 executives leading key functions including strategy, operations, finance, technology, and human resources.

Driven by innovation, Omron Scientific Technologies is dedicated to advancing automation safeguarding products and services, serving diverse markets with a commitment to worker safety and operational efficiency.

Leadership Roles at Omron Scientific Technologies

  • Chief Executive Officer - Ben Za
  • President & Chief Executive Officer - Junta Tsujinaga
  • President & Chief Executive Officer - Brian Leeson
  • President & Chief Executive Officer - Olivier Welker
  • Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd. - Taisuke Tateishi
  • Senior Managing Executive Officer, Chief Financial Officer and Senior General Manager, Global Strategy Headquarters - Koji Nitto
  • Chief Operating Officer - Thomas Mabrey
  • Managing Executive Officer & President, Device & Module Solutions Company - Masahiko Ezaki
  • Executive Vice President & Chief Technology Officer - Kiichiro Miyata
  • Senior Managing Executive Officer & Chief Human Resources Officer - Masahiko Tomita
  • Ben Za - Chief Executive Officer

    Ben Za, the Chief Executive Officer at Omron Scientific Technologies, directs the overarching corporate strategy and operational execution. This leadership role involves guiding the company's expansion within the North American market, focusing on the delivery of advanced automation safeguarding products and services. Za's oversight extends to the Safety Products Group and the Optical Sensor Division, ensuring product innovation and market penetration in sectors like semiconductor, automotive, and electronics manufacturing. The Chief Executive Officer's responsibilities include fostering strategic partnerships and driving the company's mission to enhance worker safety around automated equipment and industrial robots. This executive's vision shapes the company's response to evolving industry demands and technological advancements, solidifying Omron Scientific Technologies' position as a market leader.

    Junta Tsujinaga - President & Chief Executive Officer

    Junta Tsujinaga, the President & Chief Executive Officer at Omron Scientific Technologies, spearheads the company's strategic direction and global operational framework. This executive's mandate encompasses driving growth across all business units, particularly within the Safety Products Group and the Optical Sensor Division. Tsujinaga ensures the seamless integration of advanced safety products and services into diverse market applications, including semiconductor, automotive, and electronics manufacturing. The President & Chief Executive Officer's role involves cultivating innovation, optimizing resource allocation, and reinforcing the company's commitment to worker safety and machine safeguarding. By overseeing key initiatives, Junta Tsujinaga advances Omron Scientific Technologies' market leadership and its mission to protect personnel operating near automated machinery and industrial robots.
    Junta Tsujinaga

    Brian Leeson - President & Chief Executive Officer

    Brian Leeson, the President & Chief Executive Officer at Omron Scientific Technologies, commands the strategic vision and operational execution for the organization. This leadership position involves directing the company's expansion and service delivery across North America, with a particular emphasis on automation safeguarding products. Leeson's purview includes the Safety Products Group and the Optical Sensor Division, ensuring robust offerings for sectors such as semiconductor, automotive, and electronics manufacturing. The President & Chief Executive Officer's responsibilities encompass fostering innovation, managing key stakeholder relationships, and driving the company's commitment to worker safety around machinery and industrial robots. Through strategic leadership, Brian Leeson advances Omron Scientific Technologies' market presence and operational excellence.

    Olivier Welker - President & Chief Executive Officer

    Olivier Welker, the President & Chief Executive Officer at Omron Scientific Technologies, directs the company's strategic initiatives and operational performance. This executive's focus is on advancing the delivery of automation safeguarding products and services, particularly within the North American market. Welker oversees the Safety Products Group and the Optical Sensor Division, ensuring that products effectively protect workers around machinery, automated equipment, and industrial robots across diverse applications like semiconductor and automotive manufacturing. The President & Chief Executive Officer's role involves driving innovation, optimizing market reach, and reinforcing the company's core mission of enhancing industrial safety. Through strategic leadership, Olivier Welker ensures Omron Scientific Technologies maintains its competitive edge and commitment to operational excellence.

    Taisuke Tateishi - Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd.

    Taisuke Tateishi, the Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd. at Omron Scientific Technologies, leads critical engineering and field service operations. This executive's responsibilities include driving the strategic deployment and service delivery of Omron's automation solutions, particularly focusing on machine safety assessments and custom guarding solutions. Tateishi oversees the Machine Services Division (MSD), ensuring specialized machinery services such as repair, relocation, and installation are executed with precision. The President and Chief Executive Officer's role involves enhancing customer support and operational efficiency across industries including metal fabrication, aerospace, and automotive. By directing these vital functions, Taisuke Tateishi strengthens Omron Scientific Technologies' comprehensive service offerings and commitment to client success.
    Taisuke Tateishi

    Koji Nitto - Senior Managing Executive Officer, Chief Financial Officer and Senior General Manager, Global Strategy Headquarters

    Koji Nitto, the Senior Managing Executive Officer, Chief Financial Officer and Senior General Manager, Global Strategy Headquarters at Omron Scientific Technologies, directs the company's financial strategy and global planning initiatives. This executive's responsibilities encompass managing all financial operations, including budgeting, forecasting, and investment strategies, to ensure fiscal health and sustainable growth. Nitto also leads the Global Strategy Headquarters, shaping the company's long-term vision and market positioning across diverse industries such as semiconductor, automotive, and electronics manufacturing. The Chief Financial Officer's role involves optimizing financial performance, managing risk, and allocating capital effectively to support innovation and expansion in automation safeguarding products and services. Through astute financial oversight, Koji Nitto drives Omron Scientific Technologies' economic stability and strategic development.
    Koji Nitto

    Thomas Mabrey - Chief Operating Officer

    Thomas Mabrey, the Chief Operating Officer at Omron Scientific Technologies, manages the day-to-day operational functions and drives efficiency across the organization. This executive's purview includes overseeing the Safety Products Group and the Machine Services Division (MSD), ensuring the effective delivery of automation safeguarding products and comprehensive machine safety services. Mabrey focuses on optimizing operational workflows, supply chain management, and service delivery to meet market demands in sectors such as semiconductor, automotive, and metal fabrication. The Chief Operating Officer's responsibilities involve enhancing productivity, implementing best practices, and ensuring the seamless execution of machine safety assessments, safeguarding installations, and custom guarding solutions. Through strategic operational leadership, Thomas Mabrey supports Omron Scientific Technologies' mission of worker safety and industrial efficiency.

    Masahiko Ezaki - Managing Executive Officer & President, Device & Module Solutions Company

    Masahiko Ezaki, the Managing Executive Officer & President, Device & Module Solutions Company at Omron Scientific Technologies, directs a key business unit focused on critical components for automation. This executive's responsibilities include driving the strategy and operational performance of the Device & Module Solutions Company, ensuring the delivery of high-quality components essential for various industrial applications. Ezaki oversees product development, manufacturing excellence, and market engagement for this division, supporting sectors such as semiconductor and electronics manufacturing. The President's role involves fostering innovation in component technology, optimizing production processes, and ensuring alignment with the broader company objectives of advancing automation and safeguarding solutions. Through dedicated leadership, Masahiko Ezaki contributes significantly to Omron Scientific Technologies' technological capabilities and market reach.
    Masahiko Ezaki

    Kiichiro Miyata - Executive Vice President & Chief Technology Officer

    Kiichiro Miyata, the Executive Vice President & Chief Technology Officer at Omron Scientific Technologies, spearheads the company's technological innovation and product development. This executive's mandate involves guiding research and development efforts to create cutting-edge automation safeguarding products and services, particularly for the Optical Sensor Division. Miyata focuses on advancing sensor technology, safety systems, and machine vision solutions to meet the evolving needs of markets including semiconductor, automotive, and electronics manufacturing. The Chief Technology Officer's role includes fostering a culture of innovation, exploring emerging technologies, and ensuring the technical superiority of Omron's offerings. By directing technological strategy, Kiichiro Miyata drives the company's competitive advantage and its commitment to enhancing worker safety through advanced engineering.
    Kiichiro Miyata

    Masahiko Tomita - Senior Managing Executive Officer & Chief Human Resources Officer

    Masahiko Tomita, the Senior Managing Executive Officer & Chief Human Resources Officer at Omron Scientific Technologies, leads the company's human capital strategy and organizational development. This executive's responsibilities include attracting, retaining, and developing talent to support the company's growth in automation safeguarding products and services. Tomita oversees all human resources functions, including talent management, employee relations, compensation, and benefits, ensuring a supportive and productive work environment. The Chief Human Resources Officer's role involves aligning HR strategies with business objectives, fostering a strong corporate culture, and promoting employee engagement across all departments, including the Safety Products Group and Machine Services Division. Through strategic HR leadership, Masahiko Tomita cultivates a skilled workforce essential for Omron Scientific Technologies' success.
    Masahiko Tomita

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    Frequently Asked Questions Regarding Omron Scientific Technologies Top Executives and Leadership Team

    Who leads Omron Scientific Technologies?
    Omron Scientific Technologies is led by Ben Za (Chief Executive Officer), along with executives such as Junta Tsujinaga (President & Chief Executive Officer) and Brian Leeson (President & Chief Executive Officer).
    Who is part of Omron Scientific Technologies’s executive team?
    The executive team of Omron Scientific Technologies includes leaders such as Ben Za (Chief Executive Officer), Junta Tsujinaga (President & Chief Executive Officer), Brian Leeson (President & Chief Executive Officer) and other senior executives.
    How many executives does Omron Scientific Technologies have?
    Omron Scientific Technologies has 10 executives leading key business areas.
    What roles are included in Omron Scientific Technologies’s leadership team?
    The leadership team of Omron Scientific Technologies includes roles such as Chief Executive Officer, President & Chief Executive Officer, President & Chief Executive Officer, President & Chief Executive Officer, Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd..