Omron Scientific Technologies Executive and Leadership Team

June, 2026

Leadership Overview

Omron Scientific Technologies has 10 executives leading key functions including strategy, operations, technology, finance, and human resources.

Driven by a commitment to innovation, Omron Scientific Technologies advances automation safeguarding products and services, protecting workers across diverse manufacturing sectors and enhancing industrial safety standards globally.

Leadership Roles at Omron Scientific Technologies

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

    Hiroki Toyama, the Chief Executive Officer at Omron Scientific Technologies, directs the overarching corporate strategy and operational execution. Toyama's leadership focuses on expanding the company's market presence in North America, particularly within the semiconductor, automotive, and electronics manufacturing sectors. This executive guides the integration of advanced safeguarding products and services, ensuring alignment with industry safety regulations and customer demands. The Chief Executive Officer's role involves fostering innovation within the Optical Sensor Division and the Machine Services Division, driving growth through enhanced product development and service offerings. Toyama's strategic vision ensures Omron Scientific Technologies maintains its position as a leading provider of automation safeguarding solutions, impacting worker safety and operational efficiency across a broad industrial landscape.

    Brian Leeson - President & Chief Executive Officer

    Brian Leeson, the President & Chief Executive Officer at Omron Scientific Technologies, spearheads the company's strategic direction and operational management. Leeson's leadership emphasizes the expansion of automation safeguarding products and services across North America, serving critical industries such as semiconductor manufacturing, automotive production, and electronics assembly. The President & Chief Executive Officer oversees the Safety Products Group, driving innovation in optical sensor technology and machine safety assessments. Leeson's focus includes enhancing the Machine Services Division's capabilities in equipment installation, repair, and custom guarding solutions. This executive's mandate involves strengthening market position by ensuring robust safety standards and delivering exceptional value to clients in metal fabrication, aerospace, and food processing industries.

    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, drives the strategic vision and operational execution for field engineering services. Tateishi's leadership focuses on enhancing the company's capabilities in machine safety assessments, safeguarding equipment installations, and the custom fabrication of guarding solutions. This executive oversees the Machine Services Division, ensuring specialized machinery services, including repair, relocation, and installation, meet the rigorous demands of industries like aerospace, automotive, and food processing. Taisuke Tateishi's role involves fostering technological advancements and operational excellence to support clients in metal fabrication and electronics manufacturing, reinforcing Omron Scientific Technologies' commitment to industrial safety and efficiency.
    Taisuke Tateishi

    Junta Tsujinaga - President & Chief Executive Officer

    Junta Tsujinaga, the President & Chief Executive Officer at Omron Scientific Technologies, directs the company's strategic initiatives and overall business operations. Tsujinaga's leadership is centered on advancing the provision of automation safeguarding products and services, particularly within the North American market. This executive oversees the Optical Sensor Division, focusing on the development and deployment of safety products designed to protect workers around automated equipment and industrial robots. Junta Tsujinaga's responsibilities include ensuring the company's offerings cater to diverse applications and markets, such as semiconductor, automotive, and electronics manufacturing. The President & Chief Executive Officer's vision drives innovation and operational excellence, solidifying Omron Scientific Technologies' role in enhancing industrial safety.
    Junta Tsujinaga

    Olivier Welker - President & Chief Executive Officer

    Olivier Welker, the President & Chief Executive Officer at Omron Scientific Technologies, leads the company's strategic planning and operational execution. Welker's focus is on expanding the reach of automation safeguarding products and services across North America, serving key sectors including semiconductor, automotive, and electronics manufacturing. This executive directs the Safety Products Group, emphasizing the development of advanced optical sensor technology to enhance worker protection around machinery and industrial robots. Olivier Welker's leadership also encompasses the Machine Services Division, driving excellence in machine safety assessments, equipment installations, and custom guarding solutions. The President & Chief Executive Officer's mandate ensures Omron Scientific Technologies remains at the forefront of industrial safety innovation.

    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 operations and global strategic planning. Nitto oversees all fiscal activities, ensuring financial stability and driving profitable growth across North American operations. This executive manages financial reporting, budgeting, and investment strategies, aligning them with the company's objectives in automation safeguarding products and services. Koji Nitto's leadership extends to shaping the global strategy, identifying new market opportunities and optimizing resource allocation for the Optical Sensor Division and Machine Services Division. The Chief Financial Officer's financial acumen and strategic foresight are crucial for Omron Scientific Technologies' sustained success and expansion.
    Koji Nitto

    Thomas Mabrey - Chief Operating Officer

    Thomas Mabrey, the Chief Operating Officer at Omron Scientific Technologies, oversees the company's day-to-day operational functions and service delivery. Mabrey's responsibilities include optimizing the performance of both the Safety Products Group and the Machine Services Division, ensuring seamless integration of safeguarding products and specialized machinery services. This executive directs efforts to enhance efficiency in equipment installations, machine safety assessments, and the custom fabrication of guarding solutions across North America. Thomas Mabrey's operational leadership focuses on streamlining processes within the semiconductor, automotive, electronics manufacturing, and metal fabrication sectors, ensuring robust safety standards and client satisfaction. The Chief Operating Officer's role is critical in maintaining the company's reputation for reliability and technical expertise.

    Judith C - President

    Judith C, the President at Omron Scientific Technologies, directs key operational aspects and strategic initiatives within the North American market. C's leadership focuses on enhancing the delivery of automation safeguarding products and services, particularly through the Safety Products Group. This executive oversees the Optical Sensor Division, ensuring the development and distribution of safety products that protect workers around automated equipment and industrial robots. Judith C's responsibilities include driving market penetration in sectors such as semiconductor, automotive, and electronics manufacturing. The President's operational oversight ensures Omron Scientific Technologies consistently meets industry safety standards and client expectations, reinforcing the company's commitment to innovation and reliability.

    Kiichiro Miyata - Executive Vice President & Chief Technology Officer

    Kiichiro Miyata, the Executive Vice President & Chief Technology Officer at Omron Scientific Technologies, architects the company's technological vision and innovation pipeline. Miyata leads research and development efforts, focusing on advancing the capabilities of automation safeguarding products, particularly within the Optical Sensor Division. This executive drives the integration of cutting-edge technologies to enhance worker protection around machinery and industrial robots across diverse markets like semiconductor, automotive, and electronics manufacturing. Kiichiro Miyata's strategic guidance ensures the development of sophisticated safety solutions that meet evolving industry demands and regulatory requirements. The Chief Technology Officer's role is pivotal in maintaining Omron Scientific Technologies' competitive edge through technological superiority and product innovation.
    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. Tomita focuses on cultivating a high-performance culture that supports innovation in automation safeguarding products and services. This executive oversees talent acquisition, employee engagement, and professional development initiatives, ensuring the workforce is equipped to meet the demands of the semiconductor, automotive, and electronics manufacturing sectors. Masahiko Tomita's role involves fostering a collaborative environment that drives operational excellence within the Safety Products Group and Machine Services Division. The Chief Human Resources Officer's commitment to employee well-being and growth is integral to Omron Scientific Technologies' long-term success and market leadership.
    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 Hiroki Toyama (Chief Executive Officer), along with executives such as Brian Leeson (President & Chief Executive Officer) and Taisuke Tateishi (Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd.).
    Who is part of Omron Scientific Technologies’s executive team?
    The executive team of Omron Scientific Technologies includes leaders such as Hiroki Toyama (Chief Executive Officer), Brian Leeson (President & Chief Executive Officer), Taisuke Tateishi (Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd.) 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, Executive Officer, President and Chief Executive Officer, Omron Field Engineering Co., Ltd., President & Chief Executive Officer, President & Chief Executive Officer.