Company history

HOYA began in November 1941, when the brothers Shoichi and Shigeru Yamanaka — until then in the paper trade, with no ground in glass — set up the Toyo Optical Glass works in Hoya, on the western edge of Tokyo. The spur was national: with the Pacific War cutting Japan off from a German-import-dependent optical supply, the country urgently needed to make its own military optical glass. Shoichi laid a straw mat in front of the melting furnace and slept there, trying combinations of crucible shape and melting temperature day and night, and after roughly two years reached, in March 1943, the melt of an optical glass he named Hoya BK7 — good enough that the Navy designated the plant a managed factory.

That summit held the danger of its own starting point. With the war’s end in 1945 the military demand vanished, and a company of some hundred employees saw its sales fall to almost nothing. HOYA turned to crystal-glass tableware for the American market: Czechoslovakia’s turn to communism had choked off Europe’s supply of high-end chandeliers, and HOYA slipped into that gap so nimbly that within a few years about 90% of its sales rode on crystal exports to North America — the very same concentration structure as the wartime dependence, with only the industry and the geography changed.

Then it broke a second time. In 1949 Japan fixed a single exchange rate of 360 yen to the dollar — a revaluation from a working rate near 600 — and the export economics collapsed overnight under roughly 40% of appreciation pressure. In 1950 HOYA let go most of its 550 employees and restarted with fewer than a hundred. Two collapses of different character in nine years — the loss of a single customer and the loss of a single market — became the founding memory from which the company’s wariness of any single dependence, and its instinct to hold several niches at once, would grow.

When the founding family died suddenly in 1957, the 32-year-old chief engineer Tetsuo Suzuki took the presidency. In 1960 he drew up the company’s first five-year plan, built on three pillars — merging three affiliates, introducing a divisional structure, and building a direct-sales network. Suzuki preached that a product not accepted at home rarely succeeds abroad, and put competitive strength in the domestic market first. The core of the direct-sales system, though, lay in how it designed operations: sales power was set at 100 and production capacity deliberately held to 85, with the shortfall filled by outsourcing — so that even in downturns HOYA’s own factories ran full and the spiral of excess inventory and discounting was avoided.

The path was not straight. In 1967 an over-investment in the eyeglass business turned to loss, and under pressure from the main bank Suzuki stepped down; he bought up shares and returned as president in 1970. That episode of yielding once to bank-led governance would later foreshadow HOYA’s turn to ROE and capital efficiency. After his return Suzuki defined market share as an asset and set a company-wide target of 50% or more in core products, reasoning that high share lowered unit cost and widened the gap in investment capacity against rivals. In 1974 HOYA began making semiconductor mask substrates on an order from IBM, building an integrated line from glass substrate through chrome mask — an early stake in a high-barrier niche.

By 1987 HOYA held the top share across a spread of small, hard-to-enter markets: eyeglass lenses 36%, crystal tableware 65%, optical lenses 60%, and mask blanks 75% worldwide. Rather than chase huge general markets, HOYA designed itself as a collection of niche near-monopolies — a structure that showed up as a 12.5% operating margin in the year ended March 1990. The lessons of the twin collapses had, thirty years on, been inverted into a financial structure.

The turn to discipline was forced by a stumble. In 1990 an ingredient-labelling error in the approval filings for three main contact-lens products came to light, and the Health Ministry ordered a full recall and a halt to sales; domestic share fell from 15% to 1.3% and HOYA booked a $26.9M (¥4bn) loss. Management argued that the products’ functional quality was fine — but learned, the hard way, that regulators judge legal conformity, a matter distinct from product quality. The episode pushed the question of how far HOYA’s engineering-led style could be reconciled with institutionalised discipline.

From 1994 HOYA reset ROE as its primary yardstick: it withdrew from unprofitable businesses, cut its dependence on the shrinking crystal-tableware market, and let the steady cash flow of its niches fund the rotation of the portfolio. Hiroshi Suzuki, who later ran the company, made an explicit principle of not clinging to businesses with no prospect. In 2003 HOYA moved to a committee-based, US-style board with a majority of outside directors — an almost too-early move among Japanese firms — turning capital efficiency into a form of governance.

That discipline then showed in the sharpest reshuffle of all. In 2007 HOYA acquired Pentax — but what it wanted was the medical endoscope, not the loss-making cameras; it took an impairment within about three years and in 2011 sold the camera business to Ricoh, keeping only the brand alive under another owner. Buy one business inside a company, cut the rest loose: portfolio rotation had become the core work of the CEO.

In 2012 HOYA declared priority investment in life-care, deliberately steering resources toward the earnings that swing least. Components for semiconductors and HDDs run flush or slump with the market; eyeglass lenses lack flash but keep selling as long as life goes on. Starting with a purchase from Seiko Epson in 2013, HOYA bought up small and mid-sized lens makers one at a time — accepting the goodwill that piles onto the balance sheet — to build the world’s number-two position in eyeglass lenses, behind EssilorLuxottica, and set that stable business as a support for the whole.

At the other pole, HOYA’s early work on EUV photomask blanks matured into a near-monopoly: the material is indispensable to the most advanced chipmaking, and HOYA’s blanks act as the industry’s de facto standard for the 2-nanometre generation and beyond, with mass production begun in Singapore in 2020. The optical-glass lineage that began with Hoya BK7 had converged onto two applications — eyeglass lenses and semiconductor mask blanks — that now define the company’s earnings.

In 2022 Hiroshi Suzuki stepped down at a high in both earnings and share price, and — rather than bring in an outsider — handed the company to a home-grown CTO, Eiichiro Ikeda, ending the two-generation Suzuki-family leadership that ran back to Tetsuo Suzuki. Ikeda calls portfolio rotation the CEO’s central job: HOYA has since divested its Pentax-derived digital-solutions business to Fujifilm and is restructuring its China endoscope operations, extending the sell-or-reorganise discipline to nearly everything — with only the EUV and DUV blanks carved out as the exception it will not let go.