Konan Medical USA

people  |  vision  |  inspiration  |  innovation  |  dedication

Global Experience


Forward Thinking


Problem Solvers

Customer Focus

Charles Wm. Stewart, OD

Charles Wm. Stewart, OD

CEO, Director

  • Twenty + years of global ophthalmic products | 35 + years of ophthalmic industry management experience
  • Global clinical and complex ophthalmic surgical device experience applied to clinical performance assessment, market enhancement, medical advisory boards, global key opinion leader relationships
  • Specialized experience in ophthalmic diagnostic products, business development, global sales infrastructure, product marketing and distribution, global regulatory environment, and SaaS (software as a service)
  • Senior management and leadership experience in USA and International public and private sector companies
  • Doctor of Optometry
Dale Sadlik, BSc., MBA

Dale Sadlik, BSc., MBA


  • Twenty+ years in the medical device industry
  • Medical device experience:
    • new product development
    • regulatory affairs
    • quality assurance
    • operations
    • strategy
  • Management Experience in public and private companies
  • MBA – University of California, Irvine
Gina Schumann, CPA

Gina Schumann, CPA


  • Twenty + years of professional Accounting experience
    • public accounting and auditing with a “big 4” firm
    • FDA regulated environments
    • EU and international trade
    • investment services
    • financial forecasting
  • Professional experience in public and private companies
  • BS Accounting – Cal State Polytechnic University – Pomona
  • Certified Public Accountant
Susan Setsuko Oak

Susan Setsuko Oak

Sr. VP, Clinical Affairs and Director

  • Assistant Professor – Department of Ophthalmology, Boston University School of Medicine
  • Research Assistant – MEEI, Department of Ophthalmology, Harvard Medical School
  • President – BioOptics Inc (contact specular microscopes image analysis systems)
  • Founder & CEO – DataMed Devices Inc. (contact specular microscopes image analysis systems
  • Board Member – Konan Medical USA, Inc. and Konan Medical Inc. (Japan)
Simon Gordon

Simon Gordon

Sr. VP, Corporate Development, Manager EMEA

  • Thirty+  years marketing medical devices
  • Twenty+ years in medical devices management
  • Global experience in sales, marketing
  • Global experience in distribution development
  • Experienced in product development
  • Early investor in Autonomous Technologies with a significant role in developing the business through to very successful trade buy out
  • Led IPO in London raising over 11M pounds sterling
Robert L. Rennaker II Ph.D.

Robert L. Rennaker II Ph.D.

Vice President Engineering and Innovation

  • Twenty+ years in biomedical device research and development
  • Published over 100 peer-reviewed scientific publications
  • Raised over $40M in federal funds for medical device research
  • Developed class 3 implantable pulse generator
  • Founder Vulintus Inc.
  • Professor of Biomedical Engineering and Neuroscience
  • BSE, MSE, Ph.D. – Arizona State University
  • Five years active duty in United States Marine Corps
Ian McMillan

Ian McMillan

VP, North American Sales and Marketing

  • Twenty+ years global experience in sales, marketing and product development
  • Specialty experience ERP systems
  • Experience in bringing multiple new products to market
  • Management experience in both private and public companies, start-ups
  • Extensive experience in e-commerce, SaaS, online distribution of entitlements and mission-critical enterprise software
Todd Isakson

Todd Isakson

VP, Customer Services

  • Thirty+ years of customer service, training and product development in multiple industries (hospitality, travel, customized software solutions, medical devices)
  • Ten + years experience in management of global network of sales and service centers
  • Experience in Loyalty Program product development achieving global recognition of best Frequent Flyer Program
  • Management experience in both public and private companies, including several start-ups
Shirin Ayers, M.E., MBA

Shirin Ayers, M.E., MBA

Sr. Product Manager, Advanced Diagnostics

  • Fifteen+ years in the ophthalmic device industry
  • Strategic management experience at national and international capacities
  • Skilled in product management, new product launch and business strategy
  • Passionate about technical/clinical education and customer support
  • Educational background includes a Bachelor’s and a Master’s degree in Engineering and an MBA



Konan's priority in this unprecedented situation is the health and safety of our employees and their families. We are  following official guidance to minimize the spread of COVID-19 and have adjusted operations accordingly. We are open to serve our customers.


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