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Kyoto Fusioneering (KF)

Component Supplier Fusion Technology Developer
Projects: 3Supply Chain Offerings: 10Funding (Investment): 6Funding (Nondilutive): 6Jobs: 2News: 4Publications: 2
Kyoto Fusioneering logo

Founding Year

2019

Location

Japan flag Tokyo, Tokyo Prefecture, Japan

Company Founders

Richard Pearson

Satoshi Konishi

Shutaro Takeda

Taka Nagao

Leadership

Satoshi Konishi, CEO

Keishi Sakamoto, CTO

Kiyoshi Seko, COO

Takashi Imai, CCMO

Website

www.kyotofusioneering.com/en

Kyoto Fusioneering is a research firm focused on developing key components for fusion machines with integrated testing faciltiies - UNITY-1 and UNITY-2.

The company develops fusion-grade solutions for plasma healing via gyrotrons, fusion fuel cycle management, fusion thermal cycle management. They also offer integration of these technologies into a functional power unit.

News

How Tennessee is becoming a hub for fusion power

Aug 19, 2026 • WPLN News

ORNL, Kyoto Fusioneering to develop fusion technology test facility in East Tennessee

Aug 11, 2026 • EurekAlert!

Fusion power plant heating system passes Tokamak Energy site tests

Jul 29, 2026 • Tokamak Energy

Kyoto Fusioneering Signs Partnership With NGK To Develop Flibe For Fusion Nuclear Plants

Jul 17, 2026 • NucNet

Publications

Review of High-Power Microwave Transmission System for ECH in LHD

Jul 6, 2026 • Journal of Fusion Energy

Real-Time Control System for Electron Cyclotron Heating Injection on LHD

Jul 6, 2026 • Journal of Fusion Energy

Projects

FAST

FAST image
Description

The FAST (Fusion by Advanced Superconducting Tokamak) project was officially announced on November 12, 2024. The project is a large collaboration comprised of several research institutions, private fusion companies, and industry partners. While FAST is set to be built in Japan, many international organizations are also involved in the project. The project is currently being spearheaded by the company Kyoto Fusion.

FAST will use a tokamak fusion device with high-temperature superconducting (HTS) magnetic coils. The project aims to create a successful tokamak device, develop a tritium fuel cycle, and develop the auxiliary systems necessary for a full-scale fusion power plant. The current goal of the project is to create a device that will generate electricity in Japan by the 2030s.

UNITY-1

UNITY-1 image
Description

UNITY-1 is a lead-lithium fuel cycle test facility for fusion machine components. This facility focuses on evaluating blanket components and thermal cycles. UNITY-1 is located in Kyoto Fusioneering's Kyoto Research Centre in Japan. UNITY-1 will also act as a user facility for the broader fusion community. Full-scale testing is expected to begin in 2026.

UNITY-2

UNITY-2 image
Description

UNITY-2 will be a radiological fuel cycle test facility. The project is a joint venture between Canadian Nuclear Laboratories (CNL) and Kyoto Fusioneering (KF) and will be established in an existing tritium-licensed building at Chalk River Laboratories (CRL) in Ontario, Canada. UNITY-2 will also act as a user facility for the broader fusion community and aims to be able to handle and process tritium for testing. Full-scale operation is expected to begin in 2026.

Supply Chain Offerings

Supply chain category

Tritium Compatible Pumps
Product offering
Tritium Compatible Pumps

Supply chain category

Silicon Carbide
Product offering
Silicon Carbide

Supply chain category

Molybdenum Alloys
Product offering
Molybdenum Alloys

Supply chain category

Liquid Breeder Material Loops
Product offering
Liquid Breeder Material Loops

Supply chain category

Integrated Blanket Solutions
Product offering
Integrated Blanket Solutions

Supply chain category

Heat Exchangers
Product offering
Heat Exchangers

Supply chain category

Low Temperature Superconductor (LTS) Magnets
Product offering
Low Temperature Superconductor (LTS) Magnets

Supply chain category

Gyrotrons
Product offering
Gyrotrons

Supply chain category

Engineering Procurement Construction (EPC)
Product offering
Engineering Procurement Construction (EPC)

Supply chain category

Materials & Component Testing
Product offering
Materials & Component Testing

Funding Received (Investment)

July 21, 2024

roundSeries C Extension 2nd Close

$6,829,000

FundersMarubeniNichicon

+ 1 More

AnnouncementSeries C Extension 2nd Close

April 30, 2024

roundSeries C Extension

$9,900,000

Funders31 VenturesFujikura

+ 1 More

AnnouncementSeries C Extension: Kyoto Fusioneering Raises 1.5 billion Yen in Series C Extension Round

May 15, 2023

roundSeries C

$73,600,000

FundersMitsui & Co.JIC Venture Growth Investments

+ 5 More

AnnouncementSeries C

February 2, 2022

roundSeries B

$11,000,000

FundersJIC Venture Growth InvestmentsJGC MIRAI Innovation Fund

+ 4 More

AnnouncementSeries B

January 17, 2021

round

$1,158,000

FundersCoral Capital
Announcement

October 11, 2020

round

$1,446,000

FundersKyoto iCAP
Announcement

Funding Received (Nondilutive)

September 9, 2025

programINFUSE
FundersFusion Energy Sciences (FES)
AnnouncementINFUSE: Characterization and Tritium Breeding Ratio Measurement of Li-6-enriched Lithium Samples After Thermal Neutron Irradiation

August 7, 2024

programINFUSE
FundersFusion Energy Sciences (FES)
AnnouncementINFUSE: Isotopic Characterization of Li-6-enriched Lithium-Lead Samples under Neutron Irradiation

July 24, 2023

programINFUSE
FundersFusion Energy Sciences (FES)
AnnouncementINFUSE: Evaluating Lithium Compatibility for Electrode Materials Used in an Electrolysis-Based Tritium Extraction Process

July 24, 2023

programINFUSE
FundersFusion Energy Sciences (FES)
AnnouncementINFUSE: A Multiphysics Simulation of Magnetohydrodynamic Li-Pb Flow in a Blanket Module with SiCf/SiC as Structural Material

July 24, 2023

programINFUSE
FundersFusion Energy Sciences (FES)
AnnouncementINFUSE: Evaluating Lithium-Lead Mixtures for Increased Tritium Breeding in Fusion Energy Blanket Systems: Exploring the Impact of Composition and Temperature

October 11, 2020

program

$646,000

FundersJapan Ministry of Economy, Trade, and Industry (METI)
AnnouncementView the announcement

Jobs

Kyoto Fusioneering logo

Engineer (KFEU, Germany-based)

Kyoto Fusioneering

Kyoto, Japan

Mechanical EngineeringNuclear Engineering

Full-time

Found 2 months ago

Kyoto Fusioneering logo

Project Manager (KFEU, Germany-based)

Kyoto Fusioneering

Kyoto, Japan

Project Management

Full-time

Found 5 months ago

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Kyoto Fusioneering logo

Founding Year

2019

Location

Japan flag Tokyo, Tokyo Prefecture, Japan

Company Founders

Richard Pearson

Satoshi Konishi

Shutaro Takeda

Taka Nagao

Leadership

Satoshi Konishi, CEO

Keishi Sakamoto, CTO

Kiyoshi Seko, COO

Takashi Imai, CCMO

Website

www.kyotofusioneering.com/en

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