Beam for Fusion, Responsible for the 'Heart of Fusion Heating Devices,' Raises 50 Million Yen in Seed Round
Beam for Fusion Inc., aiming for early realization of fusion energy through beam heating, neutral particle injection, and liquid metal high heat flux technologies, has successfully raised 50 million yen in a seed round from Incubate Fund. These funds will be used to strengthen the organization, promote domestic and international projects, and deepen technology development.
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- 📰 Published: March 31, 2026 at 20:00
- 🔍 Collected: April 1, 2026 at 13:39 (17h 39m after Published)
- 🤖 AI Analyzed: April 22, 2026 at 01:08 (491h 28m after Collected)
Beam for Fusion Inc. (Headquarters: Sakuragaoka, Kani City, Gifu Prefecture; Representative Director: Hiroshi Horiike), which aims for the early realization of nuclear fusion energy through beam heating, neutral particle injection, and liquid metal high heat flux technologies—key technologies for nuclear fusion reactors—has completed a 50 million yen third-party allocation of new shares in a seed round, with Incubate Fund (Headquarters: Minato-ku, Tokyo) as the sole subscriber.
### Background
Currently, fusion energy is predicted to become a 100 trillion yen market by 2040 *1, and construction of demonstration reactors is beginning worldwide. To achieve a fusion reaction on Earth, it is necessary to heat the plasma fuel to approximately 100 million degrees Celsius, and the "Neutral Beam Injector (NBI)" for this purpose is one of the most critical components of a fusion reactor. However, conventional "positive ion" NBI methods faced the challenge of significantly decreasing efficiency with increasing energy. A highly efficient "negative ion" method is essential for next-generation fusion reactors *2, but its stable generation has been extremely difficult and a long-standing technological bottleneck.
*1 Source: Deloitte Touche Tohmatsu Group, "Future Potential of Fusion Energy – A Sun on Earth –"
*2 Positive ions become less likely to return to neutral particles without charge as their energy increases (neutralization efficiency decreases), whereas negative ions maintain high neutralization efficiency even at high energies, making them indispensable for next-generation fusion reactors.
### Business Overview
Beam for Fusion Inc. is a startup that develops and designs "Neutral Beam Injectors (NBI)," which inject high-energy particle beams into the reactor to heat it. We have a technical team that was the first in the world to implement a negative ion beam-based NBI device at a practical reactor level (200kV-500kV, 5-10MW class). Engineers who have led national projects at the Quantum Science and Technology Agency (QST) and the National Institute for Fusion Science (NIFS), central to Japan's fusion research, provide essential solutions for nuclear fusion as an "industrial implementation" beyond the research stage.
### Purpose of Fundraising
Developing and transferring NBI devices is a large-scale project that spans a very long period due to its immense scale. The funds raised will be used to reliably complete these projects and build the foundation for inheriting and organizing world-class technology for the next generation.
- **Strengthening the organizational structure:** Recruiting key persons for the next generation, including technical successors, management members, and international BizDev personnel, as well as fostering young engineers and researchers and transmitting and developing fundamental technologies.
- **Promoting domestic and international projects:** Accelerating NBI device development projects with overseas companies and promoting system design and supervision work in domestic fusion projects.
- **Deepening technology development:** Reinvesting in R&D for commercializing next-generation NBI devices through proprietary design. High-energy ion beam devices are comprehensive engineering systems that include various technical elements necessary for nuclear fusion, contributing to the technological development of fusion reactors while expanding business.
- **Establishing technology succession and organizational foundation:** To preserve and develop the negative ion beam technology cultivated through many years of research as an asset of the company rather than individual knowledge, for the next generation of technology.
### Background
Currently, fusion energy is predicted to become a 100 trillion yen market by 2040 *1, and construction of demonstration reactors is beginning worldwide. To achieve a fusion reaction on Earth, it is necessary to heat the plasma fuel to approximately 100 million degrees Celsius, and the "Neutral Beam Injector (NBI)" for this purpose is one of the most critical components of a fusion reactor. However, conventional "positive ion" NBI methods faced the challenge of significantly decreasing efficiency with increasing energy. A highly efficient "negative ion" method is essential for next-generation fusion reactors *2, but its stable generation has been extremely difficult and a long-standing technological bottleneck.
*1 Source: Deloitte Touche Tohmatsu Group, "Future Potential of Fusion Energy – A Sun on Earth –"
*2 Positive ions become less likely to return to neutral particles without charge as their energy increases (neutralization efficiency decreases), whereas negative ions maintain high neutralization efficiency even at high energies, making them indispensable for next-generation fusion reactors.
### Business Overview
Beam for Fusion Inc. is a startup that develops and designs "Neutral Beam Injectors (NBI)," which inject high-energy particle beams into the reactor to heat it. We have a technical team that was the first in the world to implement a negative ion beam-based NBI device at a practical reactor level (200kV-500kV, 5-10MW class). Engineers who have led national projects at the Quantum Science and Technology Agency (QST) and the National Institute for Fusion Science (NIFS), central to Japan's fusion research, provide essential solutions for nuclear fusion as an "industrial implementation" beyond the research stage.
### Purpose of Fundraising
Developing and transferring NBI devices is a large-scale project that spans a very long period due to its immense scale. The funds raised will be used to reliably complete these projects and build the foundation for inheriting and organizing world-class technology for the next generation.
- **Strengthening the organizational structure:** Recruiting key persons for the next generation, including technical successors, management members, and international BizDev personnel, as well as fostering young engineers and researchers and transmitting and developing fundamental technologies.
- **Promoting domestic and international projects:** Accelerating NBI device development projects with overseas companies and promoting system design and supervision work in domestic fusion projects.
- **Deepening technology development:** Reinvesting in R&D for commercializing next-generation NBI devices through proprietary design. High-energy ion beam devices are comprehensive engineering systems that include various technical elements necessary for nuclear fusion, contributing to the technological development of fusion reactors while expanding business.
- **Establishing technology succession and organizational foundation:** To preserve and develop the negative ion beam technology cultivated through many years of research as an asset of the company rather than individual knowledge, for the next generation of technology.