Built on science, driven by care

Stephen Harada, DDS

Chief Executive Officer & Founder

Dr. Stephen Harada is a dentist and inventor with nearly 40 years of practice in the San Francisco Bay area. In 1998, a patient emergency inspired him to design a better toothbrush, leading to the development of the Curvex line—ergonomically engineered brushes featuring patented innovations in bristle arrangement, head shape, and handle design. His designs include a convex head that curves away from the palate, tapered bristles that follow the dental arch, and a reverse-curve handle for improved posterior reach. He founded Ergonomic Dental Technologies (EDT) to bring his designs to market, securing international patents beginning in 2001. Clinical studies at the Dugoni School of Dentistry validated Curvex's effectiveness, and the U.S.-manufactured product line received the ADA Seal of Acceptance. Dr. Harada earned his DDS from the University of the Pacific's Dugoni School of Dentistry in 1977.

Hem Kumar

Chief Financial Officer

Hem Kumar oversees the Company's legal, regulatory, and compliance matters and serves as Corporate Secretary and Alternate Director. With over 35 years' experience in legal, financial, and investment banking across Europe and the Pacific Rim, he began his career in corporate law in London before advancing to senior roles in corporate finance and asset management at global merchant banks. In 2000, he relocated to San Francisco, where he has since operated a corporate law consultancy serving early-stage West Coast companies. He holds a BSc in Economics (London School of Economics), LLB/JD (King's College, Cambridge), and MBA (London Business School). He is a Chartered Financial Analyst (CFA), Chartered member of the London Institute of Management & Technology, and member of the National Association of Venture Capitalists (NAVC).

Michael Clarke

Chief Marketing Officer

Michael Clarke is a creative executive with over 30 years of experience leading design and marketing initiatives across boutique agencies and corporate environments. Most recently, as Creative Director at BioLife Solutions, he led the corporate rebranding initiative, directed creative development across product and service platforms, and built a dynamic team that successfully integrated five acquired company brands into a cohesive architecture. His prior creative leadership roles include UX/UI design direction at Cisco, where he developed enterprise IoT solutions for transportation, manufacturing, and public spaces. As principal of his own design agencies, he built an extensive client base including MD Anderson Cancer Center, Schlumberger, and Sysco Foods, earning multiple industry awards for institutional publications and annual reports. He holds an MFA from the University of Houston and a BFA in Graphic Design from Lamar University.

Seth Lilly

Chief Technology Officer

Seth Lilly is a technology executive with over 20 years of experience building and leading high-performing software engineering teams across startups, privately held companies, publicly traded corporations, and government entities. Most recently, as Global VP of Software Engineering at BioLife Solutions, he led business integration for acquisitions, developed strategic and annual operating plans, conducted M&A due diligence, and significantly grew both the engineering team and product output. His prior technical leadership roles include positions at Cisco Systems, Startups.com, Saga Communications, and the National Science Foundation's EPSCoR program. In addition to his corporate experience, Seth has founded multiple ventures, including a technology consultancy and an independent record label. He holds a Certified Director in Corporate Governance credential from UCLA Anderson Executive Education.