Space Seed Holdings Acquires Patent Rights for Ultra-High-Pressure Sintering Technology Invented by Professor Yoshihisa Mori of Okayama University of Science
Space Seed Holdings Inc. (Headquarters: Minato-ku, Tokyo; CEO: Kengo Suzuki, hereinafter “Space Seed Holdings”) has acquired the rights to a patent for the invention titled “Anvil Cell, High-Pressure Generation Device, High-Pressure Sintering Device, Spark Plasma Sintering Device, and Spark Plasma Sintering Method” by Professor Yoshihisa Mori of Okayama University of Science (Location: Okayama City, Okayama Prefecture; President: Hiroyuki Hirano). The rights were transferred by Kake Educational Institution (Location: Okayama City, Okayama Prefecture; Chairman: Hiroshi Kake), and the patent application was filed in March 2025.
About the Invention
This invention introduces an innovative anvil cell structure that enables sintering in ultra-high-pressure ranges far exceeding the limitations of conventional Spark Plasma Sintering (SPS) technologies. While typical commercial SPS systems operate at around 100 MPa, the high-pressure generation device in this invention is capable of producing pressures up to 10 GPa. This makes it possible to cover conditions required for diamond synthesis, such as 5 GPa and 1500°C.
Key Features
・Anvil configuration that allows uniform pressure application from three orthogonal axes.
・Conductive anvils enabling simultaneous pressure application and pulsed DC current sintering.
Potential Applications
This invention holds great promise for the development of next-generation functional materials. Potential applications include the synthesis of ultra-hard materials such as diamonds and c-BN (cubic boron nitride) used in cutting and polishing tools, and h-BN (hexagonal boron nitride), which is gaining attention in quantum computing. Additionally, it could contribute to the production of high-quality materials like diamond semiconductors used in extreme environments such as nuclear power plants and outer space. This technology is expected to have ripple effects in advanced fields including aerospace, semiconductors, medical devices, and nuclear fusion.
Future Outlook
Going forward, Space Seed Holdings aims to create sustainable material solutions that contribute to the Earth’s environment and the future of humanity. The company plans to launch collaborative development projects centered on this technology, engage in joint research with universities and research institutes, and pursue commercialization through carve-outs in partnership with chemical and semiconductor companies.
About Space Seed Holdings Inc.
Space Seed Holdings Inc. is a space-focused deep-tech venture builder with a mission to “turn science fiction into nonfiction.” The company engages in investment, research, and business creation activities, including operating the Fermentation and Longevity Fund program that supports the societal implementation of fermentation and longevity technologies. Space Seed Holdings strives to build the technologies necessary for human habitation in outer space by 2040, in collaboration with diverse stakeholders.
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