Kokusai Electric
Japanese supplier of semiconductor manufacturing equipment, with a particular focus on deposition and related wafer-processing technologies.
Last updated August 22, 2026
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Overview
Kokusai Electric is a Japanese semiconductor manufacturing equipment company headquartered in Chiyoda, Tokyo. Its history extends across more than seven decades, beginning with a 1949 business established as Kokusai Electric Industry Co., Ltd. The company initially worked in electrical-equipment repair and distribution before moving into equipment for semiconductor production. A significant early transition came in 1956, when Kokusai Electric began accepting orders for equipment used to pull germanium and silicon single crystals. This move placed the company closer to the materials and process-equipment base of the emerging semiconductor industry. It later expanded into equipment used in wafer manufacturing and other front-end semiconductor processes. The company’s activities have included deposition systems and other equipment intended for the controlled formation, treatment, or cleaning of thin films on semiconductor wafers. Kokusai Electric developed an international presence over time. Kokusai Electric Co. of America was established in 1971, reflecting the importance of overseas semiconductor customers and the United States market. In 1989, the company established Kokusai Electric System Service Co., Ltd., adding a dedicated service-related organization to its corporate structure. During the 1990s, Kokusai Electric became part of a broader Hitachi-related business through a merger that created Hitachi Kokusai Electric Inc. During the 2000s, the business continued developing semiconductor equipment for larger wafer sizes. One cited development was the AdvancedAce platform, associated with advanced deposition applications. The company’s technical positioning has consequently centered on process equipment that supports semiconductor fabrication rather than on consumer electronics or finished semiconductor products. Kokusai Electric was separated from Hitachi Kokusai Electric and became an independent company in 2018. This separation marked a major change in corporate identity and ownership structure, while preserving the company’s longstanding semiconductor-equipment specialization. The independent company subsequently returned to the public market. On September 21, 2023, the Tokyo Stock Exchange approved its listing on the Prime Market, and the listing took effect on October 25, 2023, under ticker 6525.T. Today, Kokusai Electric presents itself as a global semiconductor manufacturing equipment supplier. Its business is best understood as a specialized industrial technology company serving semiconductor fabrication customers. The available reference material identifies deposition equipment, cleaning equipment, and atomic layer deposition equipment among its representative areas and offerings. Detailed current information on its customer concentration, geographic revenue mix, management team, and financial performance is not included here.
History
Kokusai Electric traces its origins to 1949, when it was founded as Kokusai Electric Industry Co., Ltd. The original business focused on electrical-equipment repair and distribution. Its later development was shaped by the growth of the semiconductor industry and by a decision to enter equipment markets serving semiconductor production. In 1956, the company entered the semiconductor manufacturing equipment field after receiving orders for equipment used to pull germanium and silicon single crystals. These systems were associated with the preparation of semiconductor materials and represented an important shift from general electrical services toward specialized industrial technology. The company subsequently developed and supplied equipment for semiconductor fabrication, including systems associated with deposition and other wafer-processing steps. Kokusai Electric became a public company in Japan when it was listed on the First Section of the Tokyo Stock Exchange in 1961. Its international expansion included the establishment of Kokusai Electric Co. of America in 1971. The American organization provided a base for overseas operations in a market that was central to the development of semiconductor manufacturing. In 1989, Kokusai Electric established Kokusai Electric System Service Co., Ltd. The creation of a system-service organization reflected the importance of maintenance and technical support in the semiconductor equipment business, where equipment uptime, process consistency, and field expertise are important to customers. The corporate structure changed again during the 1990s, when Kokusai Electric merged with Hitachi and became part of Hitachi Kokusai Electric Inc. In the following decade, the business continued to develop equipment for semiconductor manufacturing, including equipment designed for larger wafer sizes. The AdvancedAce platform is identified as one of the developments associated with this period and with advanced deposition applications. In 2018, the semiconductor equipment business was spun off from Hitachi Kokusai Electric and became the independent KOKUSAI ELECTRIC CORPORATION. This separation established the modern Kokusai Electric corporate identity and ended the company’s direct operation within the Hitachi Kokusai Electric structure described in the historical record. The company’s next major corporate milestone was its return to the Tokyo Stock Exchange. On September 21, 2023, the exchange approved KOKUSAI ELECTRIC for listing on the Prime Market. The listing took effect on October 25, 2023, with the company trading under the ticker 6525.T. Kokusai Electric now operates as a semiconductor manufacturing equipment supplier with a global market orientation. Its described product scope includes thin-film deposition equipment, wafer cleaning equipment, atomic layer deposition equipment, and other systems used in semiconductor fabrication. The available historical material does not provide enough detail to document individual chief executives, specific acquisitions, financial results, customer relationships, or later product releases without additional sources.
- 2023
Prime Market listing approved and completed
[1]The Tokyo Stock Exchange approved the company’s Prime Market listing on September 21, with trading beginning on October 25 under ticker 6525.T.
- 2018
Separation from Hitachi Kokusai Electric
[1]The semiconductor equipment business was spun off and became the independent KOKUSAI ELECTRIC CORPORATION.
- 2000
Development of larger-wafer deposition platforms
[1]During the 2000s, the business developed advanced deposition equipment for larger wafer sizes, including the AdvancedAce platform.
- 1990
Merger into Hitachi Kokusai Electric
[1]During the 1990s, Kokusai Electric merged with Hitachi and became part of Hitachi Kokusai Electric Inc.
- 1989
System-service subsidiary established
[1]Kokusai Electric established Kokusai Electric System Service Co., Ltd.
- 1971
Kokusai Electric Co. of America established
[1]The company created an American organization as part of its international development.
- 1961
Tokyo Stock Exchange listing
[1]Kokusai Electric was listed on the First Section of the Tokyo Stock Exchange.
- 1956
Entry into semiconductor manufacturing equipment
[1]The company entered semiconductor equipment after receiving orders for germanium and silicon single-crystal pulling equipment.
- 1949
Company founded as Kokusai Electric Industry
[1]Kokusai Electric Industry Co., Ltd. was established with an initial focus on electrical-equipment repair and distribution.
Products and positioning
A specialized Japanese semiconductor equipment supplier focused on deposition, wafer-processing, cleaning, and related front-end fabrication technologies.
Semiconductor process equipment
Thin-film deposition equipment
Equipment used to form controlled thin films during semiconductor wafer fabrication. Deposition is a core front-end process in which material is placed onto a wafer to create or support device structures. Kokusai Electric’s historical development includes advanced deposition systems designed for larger wafer sizes.
Semiconductor process equipment
Atomic layer deposition equipment
Equipment for atomic layer deposition, a thin-film process that builds material in highly controlled cycles. The reference material identifies atomic layer deposition equipment as one of Kokusai Electric’s flagship offering areas, although it does not specify individual current models or launch dates.
Semiconductor process equipment
Wafer cleaning equipment
Systems used in semiconductor manufacturing to clean wafers and support process control. Cleaning equipment forms part of the company’s described semiconductor-equipment portfolio. The available material does not identify specific product families, technical specifications, or release dates.
Deposition equipment platform
AdvancedAce platform
AdvancedAce is identified as a platform developed during the 2000s for advanced deposition applications and larger wafer sizes. It represents the company’s effort to adapt its equipment portfolio to changing semiconductor manufacturing requirements. Specific configurations and current availability are not detailed in the reference material.
Brand decisions
2023
Prime Market listingOtherBackground
After becoming independent in 2018, Kokusai Electric sought a new public-market position in Japan.
Action taken
The Tokyo Stock Exchange approved the company’s Prime Market listing on September 21, 2023, and the listing took effect on October 25, 2023.
Aftermath
Kokusai Electric returned to trading on the Tokyo Stock Exchange under ticker 6525.T.
2018
Separation from Hitachi Kokusai ElectricStrategyBackground
Kokusai Electric’s semiconductor equipment business had operated within the Hitachi Kokusai Electric structure following a merger in the 1990s.
Action taken
The business was spun off in 2018 and became the independent KOKUSAI ELECTRIC CORPORATION.
Aftermath
The separation created the independent corporate entity that later pursued a new listing on the Tokyo Stock Exchange.
Recent events
- 2023
Tokyo Stock Exchange approves Kokusai Electric Prime Market listing[1]
Other
The Tokyo Stock Exchange approved Kokusai Electric’s listing on the Prime Market on September 21, 2023. The listing subsequently became effective on October 25, 2023.
- 2023
Kokusai Electric returns to the public market[1]
Other
Kokusai Electric began trading on the Prime Market of the Tokyo Stock Exchange, marking the public-market phase of the independent company established after its separation from Hitachi Kokusai Electric.
Sources3 sources
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