JEOL USA Management Team

Executive Management Team and Board of Directors

Takeshi Kawakami
Managing DirectorIn his role as Managing Director at JEOL USA, Mr. Kawakami is an important liaison between JEOL, Ltd. in Japan and JEOL USA, and is responsible for business administration in North America and Latin America. He has held various sales and general management positions in the company since 1990, including Manager of the Electron Microscopy Sales Promotion Group when the first ARM200F TEM was introduced. He was at JEOL USA from 2013-2018 as Sales Manager for North America and Latin America. JEOL USA welcomed Mr. Kawakami in April 2023 for his second assignment in the U.S.

Robert Pohorenec
CEO
Bob Pohorenec transitioned to CEO of JEOL USA in April 2026. He was previously appointed President of JEOL USA in 2019 and Corporate Officer of JEOL, Ltd. in 2024. A thirty-five year veteran of JEOL most recently as Vice President and General Manager of Sales and Service, Bob has held senior management positions in customer service, sales, operations and product development. As President of JEOL USA Bob oversees JEOL’s business operations in the United States and throughout the Americas through JEOL’s subsidiaries in Brazil, Canada, and Mexico. Bob is a graduate of Northeastern University.

Dr. Thomas Isabell, Vice President, Sales and Marketing

Dr. Thomas Isabell
President
Dr. Isabell was appointed as President of JEOL USA in April 2026 and was previously Vice President of Sales and Marketing from April 2025. Prior to that he was promoted to Vice President of Product Management in April 2020. He has been a member of the JEOL management team since 2003, most recently as Director of Product Management, overseeing a team of product managers and scientists responsible for sales support, customer technical support, instrument demonstrations and analytical development for JEOL scientific instrument products. Previously he served as Director of the Transmission Electron Microscope product division, managing a team of scientists and working closely with customers to help keep JEOL at the forefront of TEM technology in materials and life sciences research. He has been instrumental in the introduction of the ARM series TEMs and CryoARM TEMs. Prior to joining JEOL, Dr. Isabell held positions in business development at EmiSpec in Tempe, Arizona and applications support at Fischione Instruments in Export, Pennsylvania. Dr. Isabell received a B.S. in Materials Science and Engineering from the University of Minnesota and a Ph.D. in Materials Science and Engineering from Northwestern University.

Naoki Shimura
Assistant Managing Director and Vice President, ServiceNaoki Shimura is Assistant Managing Director of JEOL USA and Vice President of JEOL’s service operations throughout the Americas, which includes 12 service offices in the U.S. and additional offices in Canada, Mexico, and Brazil.Mr. Shimura joined JEOL in 1999 as a Field Service Engineer in Japan after first gaining experience as an electron microscope user in a hospital environment doing pathology work. In his first assignment with JEOL, he supported the installation and maintenance of electron microscopes. He was instrumental in training service engineers when he moved to JEOL Asia In 2006. When JEOL began development of the ARM300F Field Emission Atomic Resolution Microscope in 2012, he took on responsibilities in product development and support.Most recently he served as Field Solutions Business Operations Support Manager in Japan while continuing his focus on the ARM300F microscopes. We welcomed Mr. Shimura to the JEOL USA office in Peabody, Massachusetts in May 2021.

Donna Gosselin
Director, Product Management
Donna Gosselin is a chemist with more than 20 years of experience in SEM and EDS. She joined the JEOL USA electron microscopy product team in 2002 and is currently the Director of Product Management. Prior to joining JEOL, Donna spent over 15 years as an analytical and research chemist in industry, with extensive experience in R&D, product development, and manufacturing. Her combined technical and industry expertise enables her to effectively align customer needs with product innovation.

Steve Tryon
Director and General Manager, Service Division
Steve was appointed to the JEOL USA Board of Directors in 2026. He brings over three decades of institutional knowledge to the Board, starting his career with JEOL USA in 1995 as a Field Service Engineer in Southern California. Throughout his tenure, he progressed through various roles in field service and service management, moving to New Jersey and then Northern California. Steve moved to the corporate headquarters in Massachusetts in 2016 where he is the General Manager of the Service Division. Steve’s oversight of the service organization is grounded in a deep, first-hand understanding of the company’s technical operations and customer needs. His extensive geographic and functional experience provides the Board with a unique perspective on scaling operations and maintaining a cohesive corporate culture across diverse regions. He holds degrees in Engineering Technology and Business, as well as specialized credentials in Supervisory Management and Field Service Management. Steve is committed to collaborating with the executive management team to drive continuous improvements service delivery, ensuring superior support and customer satisfaction.

Advisory

Peter Genovese
Chairman Emeritus & Senior Advisor
Pete Genovese is Chairman Emeritus of JEOL USA and Senior Advisor to JEOL, Ltd. Pete served as President of JEOL USA from 2009 to 2019 and Corporate Officer to JEOL, LTD. and has held key positions in the JEOL sales organization for 38 years, including: Vice President and General Manager of the Sales and Marketing Division for electron optics and analytical instrumentation; Manager of the New England regional sales area for electron optics; and Assistant Sales Manager of JEOL USA's regional sales offices. Mr. Genovese received a B.S. in Economics from Boston College and an Executive M.B.A. from Suffolk University, and is a member of several microscopy societies throughout the U.S.

JEOL Brasil Management Team

Executive Management Team and Board of Directors

Tomoaki Mukai
Managing Director

Mr. Mukai served 5 years as Managing Director of an Australian company in Sydney, not only in management but also in sales & service support. After joining JEOL, he became experienced in sales in the academic, electronics, and semiconductor markets in the greater metropolitan areas of Tokyo, Sendai, and Osaka. Starting in 2001, he was stationed in Singapore as an overseas sales representative. Thereafter, he was in charge of sales in the Taiwan, Korea semiconductor, and academic markets while based in the Tokyo office. His purview then broadened to managing the entire Asia Pacific Area market. Since April 2023, he has been based in the São Paulo office as Managing Director for JEOL Brasil.

André Maeda Oyama
President

André Maeda Oyama was appointed President of JEOL Brasil in 2023. He worked for 19 years in the company that represented JEOL in Brazil, and actively participated in the transition process until the founding of JEOL Brasil in 2010, where André held the position of Sales Manager and Director. He is currently responsible for the promotion and supervision of operations in Argentina, Bolivia, Brazil, Chile, Paraguay, Peru and Uruguay.

André received his B.S and M.Sc in Physics from Universidade Federal de São Carlos.

JEOL de Mexico Management Team

Executive Management Team and Board of Directors

Takehito Ogawa
General Manager, JEOL de Mexico

Takehito Ogawa joined JEOL in 1983 and initially worked in the factory, where he was responsible for final system adjustments. He later moved into domestic and international service, supporting SEM and EPMA systems and engaging in customer service operations across a range of scientific instruments, including surface analysis systems.

He was appointed General Manager of JEOL de Mexico in June 2024 to support the company’s continued development in the Latin American market.

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