

Yoshihiro Hidaka
Yoshihiro Hidaka grew up in Tokyo, Japan, and after graduating from Keio University, he began his career at a global, automotive product supplier. He spent the next 18 years working in Japan and the US, and starting a family with his wife, Keiko.
In 1989, he founded Hidaka USA, Inc. as a sheet metal fabrication company supplying prototypes to the automotive industry. Hidaka USA, Inc. was constructed on 22 acres in Dublin, Ohio, and commenced operations in June 1991. Over the next decade, Yoshihiro expanded the company’s workforce, technical expertise, equipment lineup and facility. By 2000, Hidaka USA, Inc. was supplying both prototype and mass production parts to a range of customers. Since then, the company has branched out to service other industries, as well as continuing to expand the facility and invest in new technologies.
Yoshihiro is a proud Corporate Citizen of Dublin and is dedicated to giving back to the local community. Taking advantage of the cherry trees on the property, he hosts an annual spring event, which is around the time the trees blossom. The event is akin to the Japanese tradition hanami, a social gathering to feast, while viewing blossomed cherry trees. He invites City of Dublin (OH) officials and their staff to express his gratitude for their continued support of Hidaka USA, Inc. and the local Japanese community. Many other area professionals and acquaintances are invited to show his gratitude for their part in enriching the community.
Yoshihiro has served on numerous boards in the Dublin and Central Ohio community past and present, including the Dublin Riverside Methodist Hospital Board, and Japanese American Society of Central Ohio (JASCO).
Diane Rosso
Diane Rosso has been a dedicated member of Hidaka USA since 2001 and holds a Bachelor of Arts in Accounting from Ohio Dominican University. With more than 25 years of experience in the manufacturing industry, she brings deep operational and financial expertise to the organization.
In January 2025, Diane was promoted to Executive Vice President, a role in which she oversees Human Resources, Finance, Administration, Purchasing, and Production Management. She plays a key role in guiding company-wide strategy, supporting cross-functional teams, and driving business growth through both operational leadership and new business development.

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