Rigaku Holdings Inc. | OpenBizGraph

§01

Basic information

BASIC

Head office: 3-9-12 Matsubaracho, Akishima-shi, Tokyo 196-8666, Japan
Chief executive: Jun Kawakami
Capital: 1,000,000,000 JPY　(10 100 millionJPY)
Employees (non-consolidated): 132 people
Employees (consolidated)
Start date
End date

§02

Websites

1 DOMAINS

https://rigaku-holdings.com/

§03

Business

1

Holding Company

§04

Related companies

27 COMPANIES

Company name	Group	Parent	Subsidiary	Customer	Supplier	Alliance	Bank	Shareholder
Molecular Structure Corporation Group
Rigaku Americas Holding Company, Inc. Group
Rigaku Asia Pacific PTE Ltd Group
Rigaku Beijing Corporation Group
Rigaku Innovative Technologies, Inc Group
Rigaku Polska Sp. z o.o. Group
Rigaku Shanghai Corporation Group
Rigaku USA Inc. Group
Rigaku/MSC, Inc. Group
Rikugaku Mizuho Manufacturing Co., Ltd. Group
Rikugaku Service Co., Ltd. Group
Rikigaku Electric Instruments (Beijing) Co., Ltd. Group
Rikigaku Electric Industry Co., Ltd. Group
Rikugaku Logistics Co., Ltd. Group
Rikugaku Distribution Service Center Co., Ltd. Group
Rigaku Americas Holding, Inc. Group
Rigaku Group
Rikigaku Mechatronics Corporation Group
Rikigaku Electric Co., Ltd. Group
Osmic, Inc. Group
Japan Instruments Inc. Group
Rigaku Portable Devices Asia Limited Group
Rigaku Semiconductor Instruments Ltd Group
Rigaku Technology Center Taiwan Group
Technologies, Inc Group
東京都昭島市に理学メカトロニクス株式会社 Group
理学山梨 Group

Names without a link are companies not yet registered in OpenBizGraph

§05

Network

NETWORK

§06

History

4 EVENTS

1951

Rigaku was established in 1951 and has developed into a leading Japanese technology company in the field of X-ray analysis, measurement, and inspection equipment. This year marks its 70th anniversary.

1951

Rigaku was established in 1951.

2021

Rigaku is celebrating its 70th anniversary.

2023

Rigaku, through a joint investment by Carlyle Group of the United States and Mr. Akira Shimura, acquired all issued shares through a holding company, with Carlyle holding about 80% and Mr. Shimura about 20% of the investment ratio.

§07

News

48 ARTICLES

2026-11-06

Rigaku Wins Special Award for Four Consecutive Years at Local Innovation Awards for X-ray Technology

Rigaku received the Osaka Prefecture Governor's Award (Special Award) and the Innovation Encouragement Award in the 2026 Local Innovation Awards for its X-ray analysis technology for semiconductors. The special award was received for the fourth consecutive year, demonstrating the company's technological strength. The company plans to advance technology development to address new analysis and measurement challenges in industries such as semiconductors.

2026-10-27

Rigaku Sponsors ICTAC Award at ESTAC 14

Rigaku sponsored the ICTAC Promising Researcher Award 2026 at the 14th European Symposium on Thermal Analysis and Calorimetry (ESTAC 14) in Split, Croatia. Dr. Juan Ivorra‑Martínez of Universitat Politècnica de València received the award for outstanding research results applying thermal analysis.

2026-10-27

Award presented at ESTAC 14, sponsored by Rigaku

From September 15 to 18, 2026, the 14th European Symposium on Thermal Analysis and Calorimetry (ESTAC 14) was held in Split, Croatia, where the award ceremony for the Rigaku–ICTAC Promising Researcher Award 2026, sponsored by Rigaku, took place. The recipient was Dr. Juan Ivorra‑Martínez of the Universitat Politècnica de València, whose research achievements utilizing thermal analysis and calorimetry techniques in the development of sustainable polymer materials and bio‑composites were recognized.

2026-10-21

Rigaku, Kyoto Univ. Form Tech Alliance

Rigaku Corporation, a global solutions partner in X-ray analytical instruments and a group company of Rigaku Holdings Corporation, together with Kyoto University, Shimadzu Corporation, JEOL Ltd., Hitachi, Ltd., Hitachi High-Tech Corporation, and HORIBA, Ltd., has established the Kyoto University Advanced Technology Development Alliance. The alliance aims to accelerate research and innovation through open co-creation in science and technology.

2026-10-15

Introducing X-ray measurement for semiconductors at SEMICON West 2026

Rigaku Group is exhibiting at SEMICON West 2026, presenting X-ray measurement solutions that support semiconductor research and development through mass production. They propose measurement technologies tailored to applications and processes, including surface contamination analysis, crystal and wafer evaluation, process control, thin film and structure measurement, and advanced packaging.

2026-10-08

Rigaku Congratulates Prof. Soai on Nobel

Rigaku Holdings congratulates Professor Kenso Soai, Professor Emeritus at Tokyo University of Science, for receiving the 2026 Nobel Prize in Chemistry. Soai is recognized for pioneering discoveries in asymmetric chemistry, including nonlinear effects and autocatalysis in asymmetric organic synthesis. Rigaku has a longstanding relationship with Soai’s laboratory and highlights its support for his research.

2026-10-08

Professor Kōgō, Honorary Professor at Tokyo University of Science, Awarded Nobel Prize in Chemistry

Rigaku Holdings congratulated Professor Kōgō Kenzo, an honorary professor at Tokyo University of Science, on receiving the 2026 Nobel Prize in Chemistry, noting that his discovery of nonlinear effects and autocatalysis in asymmetric organic synthesis has greatly contributed to the advancement of asymmetric chemistry. Rigaku has long provided a single-crystal X-ray diffraction apparatus to Professor Kōgō's laboratory and supported his research. The collaboration with Professor Tōshi Kawazaki's laboratory, which succeeded Professor Kōgō's lab, continues to this day.

2026-10-08

Rigaku Showcases X-ray Metrology

Rigaku Group will bring its latest semiconductor metrology solutions to SEMICON West 2026, demonstrating how X-ray technologies support semiconductor manufacturing across the entire lifecycle and help customers connect process challenges with suitable metrology solutions. The event will take place October 13–15 at Moscone Center in San Francisco.

2026-09-25

Rigaku establishes Advanced Technology Development Alliance with Kyoto University

Rigaku has established the "Advanced Technology Development Alliance" with Kyoto University and other companies. This open co‑creation platform links cutting‑edge research with corporate technological capabilities to promote new technological and research innovations.

2026-09-11

Rigaku Yamanashi Work Experience Program

Rigaku provided work experience opportunities to two junior high school students at its Yamanashi Factory in July 2026. The program included a factory tour and hands-on activities to showcase the company’s manufacturing processes.