Fujitsu, RIKEN and Anyon: Scale and Sovereign Superconducting Quantum Computers

Updated 2026-10-11 | 4 min read | QUANTUM (QNT) community

Fujitsu and RIKEN: building up from a proven unit

On April 22, 2025, Fujitsu and Japan's RIKEN institute announced a 256-qubit superconducting quantum computer, four times the 64-qubit system that came before it. Its qubits are organized in four-qubit units arranged in a scalable 3D connection structure, and the design reuses the unit cell from the 64-qubit machine, which the companies presented as evidence the approach scales. It sits at the RIKEN RQC-Fujitsu Collaboration Center. A key engineering point was fitting more qubits into the same dilution refrigerator used for the earlier system, balancing heat from the control circuits against the cooling capacity. More on that in the hardware guide and how quantum computers are cooled.

The companies also extended their collaboration agreement through March 2029 and said the next goal was a 1,000-qubit system, planned for installation at a new facility at Fujitsu Technology Park in 2026. As of this writing I could not find a report confirming that it has been completed, so treat that machine as a plan.

The 10,000-plus qubit project

On August 1, 2025, Fujitsu announced it was starting official development of a superconducting quantum computer with more than 10,000 physical qubits, aiming for completion in fiscal 2030. Reported details:

• It is planned to run 250 logical qubits using Fujitsu's STAR architecture, which is described as an early fault-tolerant design.
• Fujitsu intends to reach 1,000 logical qubits in fiscal 2035.
• The work is part of a project run by NEDO, Japan's New Energy and Industrial Technology Development Organization, with AIST and RIKEN, running until fiscal 2027.
• The research areas include high-throughput, high-precision qubit manufacturing, chip-to-chip links for bigger processors, high-density packaging with low-cost control, and decoding for error correction.

Notice that 10,000 is a physical qubit count while 250 and 1,000 count logical qubits. That ratio of around 40 physical qubits per logical qubit is much lower than the thousands often assumed in the past, and it is a bold target. Whether it can be reached depends on error rates that Fujitsu has not yet demonstrated at that scale. For the logical qubit idea, see error correction explained.

Anyon Systems: full stack, sovereign and supercomputer friendly

Anyon Systems is a Canadian maker of full stack superconducting quantum computers. On August 31, 2026, it announced a strategic partnership with KMT Technologies, a Matrix Group company, making KMT its exclusive representative and distributor in selected international markets and an authorized partner for installation, commissioning, integration, service and support. Anyon will train and certify KMT personnel.

Reported facts about its hardware and plans:

• Its MonarQ system is installed at Calcul Quebec and integrated into Canada's high-performance computing ecosystem. Calcul Quebec describes MonarQ as a 24-qubit superconducting computer (a 2024 Canadian government release described a project to grow it from 12 to 24 qubits, so the count may have changed over time).
• It is developing a 72-qubit superconducting computer, followed by systems designed to exceed 100 physical qubits.
• It is developing fourth generation control electronics for direct RDMA based connections to GPU infrastructure, in line with the hybrid computing trend (see hybrid quantum and GPU computing).

I also saw an aggregator claim of a Canadian government funding award for Anyon in December 2025, but I could not confirm it from a primary source, so I am not relying on it.

What these two stories have in common

Both are about delivering quantum machines into existing supercomputing and national research settings. Japan is backing a national hardware path through RIKEN and NEDO. Canada has a homegrown vendor serving Canadian centers and now looking abroad. This "sovereign capability" theme appears across governments (see the global quantum race and UK, India and Japan programs). It is a reason the industry may keep getting steady support even when markets are choppy.

A balanced view

Large qubit counts are impressive engineering, but a 256-qubit or 1,000-qubit chip is only useful if the gates are accurate. Neither company has, in what I read, published the fidelity figures that would let outsiders compare against Rigetti or IQM (see the comparison guide). Optimism is reasonable, since the plans are funded and specific, but dates are targets. This is education, not financial advice, and the QNT memecoin is independent of Fujitsu, RIKEN, Anyon and Quantinuum Ltd.

Sources and further reading

• The Quantum Insider: Fujitsu and RIKEN unveil 256-qubit system (April 2025)
• The Quantum Insider: Fujitsu starts development of 10,000-plus qubit computer (August 2025)
• The Quantum Insider: Anyon Systems and KMT Technologies partner (August 2026)
• Calcul Quebec: inauguration of MonarQ
• Fujitsu: superconducting quantum computer page (1,000-qubit plan)

Reported as of 2026-10-09. Company roadmaps are targets and often slip. Check each company's own announcements. Nothing here is financial advice, and the QNT memecoin is independent of Quantinuum Ltd and of every company named.

Frequently asked questions

Share on X

Keep reading

• Superconducting Qubit Makers Compared: Rigetti, IQM, Alice & Bob, OQC, Fujitsu and Anyon
  A plain English side by side look at six superconducting quantum hardware makers, what each is betting on, and the 2025 to 2026 milestones that have been reported.
• The Global Quantum Race: What Governments Are Saying and Spending
  A plain English tour of how the US, China, the EU, the UK, India and Japan treat quantum computing as national strategy in 2026.
• How Are Quantum Computers Cooled?
  Why do some quantum computers sit in huge fridges near absolute zero? A plain English guide to dilution refrigerators, noise and which qubits need cooling.
• Quantum Computing Companies to Know (and Not to Confuse)
  A neutral overview of well-known quantum computing companies and what approach each takes, plus how they differ from a memecoin.

All Quantum industry, people and AI guides | Back to top | Search the site

Main pages: Quantum computing explained | Quantum and crypto | Companies | Quantum news | Glossary