Business Domains

Since its establishment as a specialty manufacturer of optical glass, HOYA has diversified its business portfolio from electronics to health care and to medical field globally.

Health Care

HOYA manufactures and sells eyeglass lenses worldwide, and operates "Eyecity," the chain of contact lens specialty stores in Japan.


HOYA's medical products include PENTAX medical endoscopes, intraocular lenses for cataract, prosthetic ceramic fillers and metal implants.


HOYA develops parts and components indispensable for manufacturing semiconductors, LCD panels, and hard disk drives.


HOYA develops and manufactures optical glass, optical lenses and lens modules as well as laser oscillators and colored glass.

Other businesses

We provide IT solutions including system architecture, speech synthesis, and cloud service. Our corporate venture capital group seeks opportunities for technology investment.