Kokusai Electric
A maker of batch furnaces for deposition and diffusion, used heavily in memory production. Formerly part of Hitachi Kokusai Electric, it was owned by KKR and listed on the Tokyo Stock Exchange in 2023.
KOKUSAI ELECTRIC・Equipment・Last updated: October 15, 2026
Overview
Kokusai Electric is headquartered in Chiyoda, Tokyo, and its main production base is in Toyama Prefecture. The company was carved out of the Hitachi group, acquired by KKR, and returned to the public market in 2023.
Batch furnaces process many wafers at once, which suits the thick and repeated film stacks used in 3D NAND and DRAM. The lineup also includes single-wafer and treatment systems.
Business: Batch deposition, diffusion and ALD equipment
Why it matters
Its results are closely linked to memory capital spending, because batch ALD and furnaces are used extensively in NAND and DRAM fabs.
Together with Tokyo Electron, it makes Japan a major source of batch thermal processing equipment.
Main products
- •Batch deposition and diffusion systems (AdvancedAce, QUIXACE series)
- •Single-wafer and treatment systems (TSURUGI, MARORA series)
Sites in Japan
Head officeHeadquarters
Chiyoda, Tokyo
Toyama production basePlant
Toyama
Other Japanese companies: Equipment
- Tokyo Electron (TEL)JapanCoat/develop, etch and deposition equipment
- SCREEN HoldingsJapanWafer cleaning, coat/develop and inspection equipment
- AdvantestJapanAutomated test equipment (ATE) for SoC and memory
- DISCOJapanDicing, grinding and polishing equipment
- LasertecJapanEUV mask and mask blank inspection
- EbaraJapanCMP systems, dry vacuum pumps and exhaust treatment
- Tokyo Seimitsu (ACCRETECH)JapanWafer probers, dicing and grinding machines, metrology