HAMAMATSU PHOTONICS K.K.
6965・Prime Market・Electric Appliances
Electron Tube Business
Hamamatsu Photonics' core segment manufacturing and selling Photomultiplier Tubes, Imaging Devices, and light sources
| Period | Current | Previous | Change |
|---|---|---|---|
| Net sales (H1 FY2026, ending March 2026) | ¥38,417 million | ¥37,245 million (H1 FY2025, ending March 2025) | ↑ |
| Operating income (H1 FY2026, ending March 2026) | ¥10,873 million | ¥10,005 million (H1 FY2025, ending March 2025) | ↑ |
| Operating margin (H1 FY2026, ending March 2026) | 28.3% | 26.9% (H1 FY2025, ending March 2025) | ↑ |
| Net sales (FY2025, ending March 2025, full year) | ¥71,906 million | — | — |
| Operating income (FY2025, ending March 2025, full year) | ¥18,953 million | — | — |
| Operating margin (FY2025, ending March 2025, full year) | 26.4% | — | — |
Business Details
A business segment that manufactures and sells Photomultiplier Tubes, Imaging Devices, and light sources. Sold globally through overseas subsidiaries such as Hamamatsu Corporation (U.S.) and Hamamatsu Photonics Deutschland (Germany). The segment has a broad presence across the medical/bio, industrial, and analytical fields, with Photomultiplier Tubes and Xenon Lamps for generative AI-related semiconductor manufacturing and inspection equipment, and Microfocus X-ray Sources for data server board inspection as core offerings. In the first half of FY2026 (ending March 2026), net sales were ¥38,417 million, accounting for approximately 34% of total group sales, making it the mainstay business.
Recent Overview
Driven by expanding generative AI and semiconductor demand, both H1 net sales and operating income increased year on year
In the first half of FY2026 (ending March 2026) (October 2025 to March 2026), the Electron Tube Business recorded net sales of ¥38,417 million (up 3.1% year on year) and operating income of ¥10,873 million (up 8.7% year on year). Sales of Photomultiplier Tubes and Xenon Lamps for semiconductor manufacturing and inspection equipment increased due to expanding semiconductor demand centered on generative AI. Microfocus X-ray Sources also increased due to rising demand for data server board inspection. Meanwhile, Deuterium Lamps for analytical instruments such as liquid chromatographs decreased. The operating margin improved to 28.3% from 26.9% in the same period of the previous year, maintaining the highest level of profitability within the group.
Key Products
Growth Drivers
- Increased demand for data server board inspection due to the spread of generative AI (Microfocus X-ray Source)
- Expanding demand for Photomultiplier Tubes and Xenon Lamps for semiconductor manufacturing and inspection equipment, centered on generative AI
- Multi-regional expansion through a global sales network (overseas subsidiaries in the U.S., Europe, and Asia)
- Rising demand for analytical technology driven by tightening regulations in the analytical field (Deuterium Lamps, etc.)
- Innovative advancement of device technology and expansion into high-value-added module and system products
Risks
- Decreased demand in the medical/bio field due to budget cuts at public research institutions such as the U.S. National Institutes of Health (NIH)
- Sluggish demand for Deuterium Lamps used in analytical instruments such as liquid chromatographs
- Unstable demand for lithium-ion battery non-destructive inspection equipment due to stagnation and volatility in the EV market
- Intensifying price competition in the Chinese market and heightened geopolitical risk
- Foreign exchange risk (U.S. dollar, euro, and Chinese yuan affecting operating income)
- Risk of capital expenditure restraint spreading due to inventory adjustment phases in the semiconductor industry
Last updated: December 26, 2025