What semiconductors and HDDs require of HOYA’s glass.
HOYA supplies eyeglass lenses to optical retailers and intraocular lenses to hospitals. Life Care generates most of its revenue. The company also supplies mask blanks to semiconductor manufacturers and glass bases for magnetic disks to HDD and media manufacturers.
Aligning processes and keeping quality consistent at volume
Customers’ choices can still change. The Information Technology review says EUV mask-blank customers may gradually move toward multiple suppliers. HOYA intends to defend its position by staying ahead of competitors at the most advanced process nodes.
Initial-phase investment to expand both kinds of supply
Life Care reaches shops and consumers, and remains the majority
DATA VIEW
Life Care remains the majority, but IT is nearly two-fifths
Company-reported revenue mix for the year ended March 2026.
Revenue mix
Life Care62%Information Technology38%
Life Care also includes Eyecity, which sells contact lenses to consumers, and intraocular lenses supplied to hospitals, clinics and ophthalmologists for cataract surgery. These are different customer relationships: supplying optical shops, retailing to consumers and selling to medical institutions (Life Care review).
Two customer fields developed from an optical-glass starting point
DATA VIEW
Optical glass branched in two directions
Selected milestones from HOYA's history.
1962Eyeglass lenses
1974Semiconductor substrates
1987Intraocular lenses
1991HDD glass
Acquisitions also helped expand the portfolio. The chronology records PENTAX becoming a subsidiary in 2007 and merging with HOYA in 2008. Today’s businesses did not all arise through internal development from a single technology (company history).
EDITORIAL MAP
Optical glass is the common starting point behind eyeglasses and semiconductors
The businesses connect more clearly when viewed through materials, optical capabilities and market selection rather than finished-product labels.
1941 Optical glassThe starting point of HOYA's business history
Vision & medicalEyeglass lenses, contacts and intraocular lenses
Semiconductor materialsMask blanks and other precision optical materials
Data storageGlass substrates for HDDs
These businesses also reflect HOYA's stated preference for demanding markets where close technical alignment makes suppliers difficult to switch.
THE VIEW AFTER THE NUMBERS
What the numbers suggest
HOYA’s glass helps customers manufacture their next product. For mask blanks, the company emphasizes technical development and process alignment with semiconductor manufacturers. For HDD substrates, it highlights consistent quality in high-volume production. Two new plants intended to meet growing demand carry roughly ¥92 billion of planned initial-phase investment in total.
Life Care remains the majority of revenue, reaching optical retailers, consumers and medical institutions. To understand the businesses that expanded from optical glass, it helps to look at the material alongside who uses it and how HOYA fits the customer’s work.
JEOL’s electron-beam writers are used in making the gratings in DFB lasers for optical communications. Spot-beam orders and sales rose in the year ended March 2026, while fewer mask writers were sold and industrial-equipment sales declined. Following what each machine patterns, and where it sits in its customer’s production process, reveals different demand conditions within semiconductor-related equipment.
