DISCO Corp. Company Overview

DISCO CORPORATION is a Tokyo Stock Exchange Prime-listed Japanese manufacturer, stock code 6146, whose consolidated group develops and supplies precision cutting, grinding and polishing equipment, abrasive consumables and related processing support. Founded in Hiroshima in 1937 as a grinding-wheel maker, it now focuses its formally stated mission on connecting advanced science with everyday life through its Kiru, Kezuru and Migaku technologies. The company is owned by public shareholders; its June 2026 governance filing identifies no parent or controlling shareholder. Equipment sales, recurring blades and wheels, application engineering, maintenance and charged processing link DISCO economically to semiconductor and electronic-component production worldwide. Its routes to market combine direct sales offices, application testing and global after-sales support. Customers can compare parts of the offer with ACCRETECH, Okamoto and laser-processing systems from ASMPT ALSI. Growth is being driven by AI-related semiconductor demand and capacity investment, while President and CEO Kazuma Sekiya leads execution. A defining capability is tightly integrated development and manufacturing; material constraints include semiconductor capital-spending cycles, technology substitution, geopolitical exposure and Japanese production-site concentration. Evidence is current through August 15, 2026.

DISCO's path is a technology migration rather than a break with its origin: abrasive grinding wheels led to precision machining, automated dicing and eventually an integrated portfolio for separating, thinning and finishing semiconductor materials. The corporate name and governance changed, but the cutting, grinding and polishing domain remained the organizing thread.

Mitsuo Sekiya founded Dai-Ichi Seitosho in Aga-machi, Kure, Hiroshima, in 1937 to make vitrified grinding wheels. Incorporation followed in 1940. The decisive expansion came when DISCO combined abrasive know-how with machines: the DAD-2H automatic dicing saw appeared at SEMICON West in 1975, placing the company directly in semiconductor manufacturing workflows.

DISCO's corporate history records the operating milestones, including the 2022 governance transition.

The continuity matters commercially. DISCO did not become a general semiconductor-equipment conglomerate; it repeatedly deepened one process domain. That boundary still shapes product development, application support and capital allocation, helping explain why machines, consumables and process recipes are treated as a connected system rather than unrelated product categories.

DISCO formally labels its social mission around advanced Kiru, Kezuru and Migaku technologies—cutting, grinding and polishing—and links that mission to making scientific progress useful in everyday life. Its long-term direction is narrower than generic growth: DISCO says corporate progress should increase stakeholder value exchange while advancing that mission.

The corporate philosophy, DISCO VALUES, dates to 1997 and includes a corporate target alongside the mission. Management later added more than 200 detailed guidelines to make the philosophy operational in daily decisions. DISCO VISION 2030 serves as a mid-term milestone, combining quantitative and qualitative goals derived backward from the future state management wants to reach.

What is the formal mission?

DISCO defines its business domain through cutting, grinding and polishing technologies, with the social role of connecting advancing science to more comfortable living rather than expanding into unrelated fields.

How does DISCO define growth?

The company explicitly separates growth from simple expansion in sales, scale or market share; it emphasizes progress toward its mission, stronger value exchange with stakeholders and greater contribution to society.

The distinctions come from DISCO's organizational-management framework.

Actions partly substantiate that language. The company keeps substantial R&D and manufacturing capability inside the group, runs application experiments with customer workpieces, and is expanding both Haneda R&D capacity and precision-tool production. The qualification is that these actions also serve hard commercial goals—capacity, responsiveness, productivity and profitability—so purpose and competitive strategy are intertwined rather than separable.

DISCO creates value by combining precision-processing machines with the blades, wheels, process conditions and support needed to make those machines work on specific materials. The economic model therefore mixes equipment revenue with recurring consumable demand and service activity, while customer inspection and acceptance can shift the timing of equipment revenue between quarters.

The core equipment range includes dicing and laser saws, grinders, polishers and related systems. Precision-processing tools include dicing blades, grinding wheels and dry-polishing wheels. Those products are reinforced by application testing, customization, installation, maintenance, training, recycling and charged dicing or grinding services in several regions.

The value flow is evidenced by DISCO's customization process, after-sales system and acceptance-timing disclosure.

The model has an important feedback loop. Application work exposes engineers to new materials and process limits; successful solutions can become repeat equipment and consumable demand; installed machines create service touchpoints; and high customer utilization increases consumption of blades and wheels. That makes installed-base activity economically relevant even when major equipment orders are cyclical.

DISCO treats in-house fabrication and proximity between engineering and production as a competitive capability, not simply a factory choice. Management says the integration improves innovation and responsiveness, while current investments at Haneda and Gohara are designed to expand R&D space, precision-tool capacity, production efficiency and business continuity.

The Haneda R&D Center began operating in 2022, and DISCO is expanding that development base while also building new precision-tool capacity at Gohara in Hiroshima. Management presents both projects as part of a continuing strategy to strengthen the in-house link between product development and manufacturing.

Why is fabrication strategically important?

DISCO's manufacturing strategy keeps design knowledge, process trials and production feedback close together, while new facilities add capacity and reduce selected continuity risks rather than outsourcing the core fabrication loop.

• Haneda expands R&D space tailored to precision-processing development.
• New facilities expand in-house development and precision-tool manufacturing capacity.
• Capacity investment preserves the feedback loop between engineering and fabrication.
• Management links integrated R&D and manufacturing directly to responsiveness and competitiveness.

DISCO explains the integrated-fabrication strategy and current capacity projects in its investor message.

The strategic implication is vertical learning rather than simple vertical integration. DISCO sells outcomes that depend on interactions among machine motion, tool materials, wafer characteristics and process settings. Keeping fabrication close to development gives the company more opportunities to observe those interactions and convert them into product changes, process recipes and production improvements.

DISCO is owned by public shareholders rather than a parent company, founder-controlled holding company or exchange. Its June 2026 governance filing states that it has no controlling shareholder and no parent. Registered ownership is dispersed among trust banks, domestic companies, foreign custodians and individuals, so governance rights operate through shareholder voting and the board.

At March 31, 2026, the largest registered holder was The Master Trust Bank of Japan's trust account at 15.78%, followed by Custody Bank of Japan's trust account at 8.28%. These are registered-holder positions; a custody or trust-bank name should not be treated as proof that the institution has the same economic interest as the underlying beneficial investors.

The governance consequence is that management authority and ownership are institutionally separated. Shareholders elect directors, while the board and its statutory committees oversee executives. Kazuma Sekiya is both a shareholder and the top executive, but his 1.93% registered stake at March 2026 does not by itself confer voting control over the company.

DISCO primarily serves semiconductor and electronic-component manufacturers, including device makers and semiconductor subcontractors, through a technically intensive direct model. Customer teams define processing requirements and participate in trials; DISCO then supports selection, delivery and production through regional sales offices, applications facilities, field engineers and recurring consumables.

This is not a mass-market channel. The buying decision depends on processing quality, material compatibility, throughput and production reliability. DISCO's free test-cut service lets customers test requirements before purchase, while customization work can involve joint experiments. After installation, service engineers and consumable replenishment keep the relationship active over the equipment life.

Distribution is therefore both geographic and technical. DISCO maintains offices across Japan, the Americas, Asia and Europe, while charged processing is offered in multiple regional locations. The high overseas-sales ratio in the latest quarter reinforces that the served market is global even though core R&D and major manufacturing sites remain concentrated in Japan.

Competition should be defined at the process decision, not by broad semiconductor-equipment labels. ACCRETECH directly overlaps in wafer dicing, Okamoto overlaps in semiconductor back-grinding, and ASMPT ALSI overlaps through laser wafer separation and grooving. Each comparison is product-level; none of these source pages establishes full-company portfolio equivalence with DISCO.

For a customer, the practical question is which process can deliver the required cut, surface, material handling and throughput with acceptable operating economics. Blade dicing can compete with laser separation for selected applications, while grinding systems compete more directly where wafer thinning or difficult-material finishing is the decision boundary.

DISCO's broader defense is integration: machines, consumables, process development and field support can be tuned together. That does not eliminate substitution risk. DISCO itself identifies technological shifts as a business risk and continues developing laser and plasma approaches, evidence that the company expects process choice to evolve as semiconductor materials and packaging architectures change.

DISCO's current growth engine is rising precision-processing demand from advanced semiconductors, especially AI and data-center applications, combined with internal capacity expansion. FY2025 set a sixth consecutive record for shipments and sales, and FY2026 first-quarter sales rose sharply. Management is responding with R&D, manufacturing and continuity investments rather than broad diversification.

FY2025 consolidated net sales reached ¥436.889 billion, up 11.1%, while operating income reached ¥184.989 billion. DISCO attributed demand strength to advanced logic and HBM used for AI and data centers, with consumable shipments supported by high facility utilization. The first quarter of FY2026 then produced ¥114.308 billion of sales and ¥135.9 billion of shipment value.

The physical expansion is already implemented or under construction. Haneda's new building is intended to expand development capacity, while Gohara phase one is intended to expand precision-tool output and consolidate Hiroshima production. For FY2026, DISCO's July operating notes estimated about ¥38 billion of R&D expense and indicated annual capital expenditure above ¥30 billion as facilities expand; these are company plans, not completed-year actuals.

Current capacity and research plans are detailed in DISCO's FY2026 operating notes.

Forecasting discipline is itself part of the growth story. DISCO says rapid shifts in semiconductor-customer investment willingness make longer-range forecasting difficult, so it limits formal business forecasts to a short horizon. That policy separates visible investment actions—buildings, R&D and production capability—from demand outcomes that management does not claim it can predict far in advance.

Kazuma Sekiya is DISCO's Representative Executive Officer, President and CEO, with direct responsibility for Engineering R&D. Noboru Yoshinaga leads Sales as Representative Executive Officer and Executive Vice President, while Takao Tamura is CFO and heads Corporate Support. Oversight sits with a board structured around three statutory committees and a majority of outside directors.

The structure deliberately distinguishes execution from supervision. DISCO adopted the Company with Three Committees model in 2022, giving nomination, compensation and audit functions to board committees. Its current governance report lists ten directors, seven of them outside directors and independent officers, while executive officers hold defined operating portfolios.

Sekiya's dual position as CEO and R&D head is especially relevant to DISCO's technology-led model: the top executive remains directly connected to engineering. The board's outside majority provides a counterweight through supervision and committee authority. That does not make outside directors operators; responsibility for sales, finance, purchasing, manufacturing sites and production remains assigned to executive officers.

Will Accounting is DISCO's internal managerial-accounting and work-allocation system, introduced for departments in 2003 and extended to individuals in 2011. It assigns internal Will prices to work and costs so departments and employees see the economics of tasks. It is a management mechanism, not the company's external reporting currency or customer revenue.

The system is unusual because it connects accounting visibility with employee choice. Department Will Accounting tracks income and expenditures, including labor and equipment costs, while Personal Will attaches an internal price to tasks offered by supervisors or colleagues. DISCO says the approach is intended to clarify cost purpose, speed decisions and raise productivity.

DISCO describes the mechanics and stated management purpose on its Will Accounting page.

The strategic value is cultural as much as financial. By putting internal prices on work, DISCO attempts to make cost and resource trade-offs visible deep inside the organization rather than only at the corporate budget level. The limitation is equally important: Will is an internal governance tool, so it should not be read as audited segment profit or external market pricing.

DISCO depends on semiconductor customers continuing to invest and run production lines, on its technologies remaining relevant as processes evolve, and on resilient Japanese R&D and manufacturing operations. Its high overseas exposure also adds currency and geopolitical sensitivity, while equipment-revenue timing depends on customer inspection and acceptance rather than shipment alone.

These constraints are not symmetric. Semiconductor investment can turn quickly and affect equipment demand first; consumables are more connected to utilization of installed production. Technology substitution can change the preferred processing method over a longer horizon. Site concentration creates low-frequency but potentially severe physical risk, which Gohara is partly designed to reduce.

The principal constraints are described in DISCO's business-risk factors and acceptance disclosure; external context comes from JCR's May 2026 sector review.

Management's responses line up with the risk map: Gohara adds production capacity and business-continuity capability, Will Accounting and PIM target cost and operational discipline, and ongoing R&D expands the process toolkit. These responses reduce selected exposures; they cannot remove customer-cycle risk, export-policy changes or the need to keep pace with semiconductor technology.

DISCO today is best understood as a focused precision-processing system company: a public manufacturer whose machines, consumables, applications knowledge and service reinforce one another around cutting, grinding and polishing. Its differentiation comes from accumulated process expertise and integrated fabrication, while disciplined governance and capacity investment support a globally exposed, semiconductor-dependent economic model.

The pieces connect causally. A narrow technology domain concentrates R&D; integrated manufacturing shortens learning loops; application testing converts customer problems into process configurations; installed equipment creates follow-on tool and service demand; and internal systems such as Will Accounting push economic awareness further into the organization. Public ownership and committee governance provide the formal control framework around that operating engine.

What is the core identity?

A focused precision-processing manufacturer that links cutting, grinding and polishing equipment with consumables, process know-how and support for semiconductor and electronic-component production.

Where does the advantage compound?

Customer applications, in-house development, fabrication, installed equipment and recurring tools create feedback loops that can deepen process knowledge and strengthen responsiveness over time.

What keeps the model bounded?

The same focus that concentrates capability also ties DISCO to semiconductor investment cycles, evolving process technologies, globally exposed sales and the resilience of its Japanese operating base.

This synthesis connects evidence already established in DISCO's management framework and risk factors.