JIJ / DECISION SYSTEMS
Use Cases
JIJ builds decision systems for problems that are too large, too constrained, or too fast-moving to plan with traditional tools. We combine mathematical optimization with quantum and quantum-inspired computing where decisions carry real operational weight.
60+
Optimization projects delivered on JijZept
10
Industries served across the value chain
4
Locations: 60 people across Tokyo, Hamburg, UK and US
3
National & multinational research programs
Where we work
Industries
Optimization problems can often translate across industry sectors. The same decomposition and solver strategy that schedules a power fleet can also schedules a production line. These are the verticals where we have already delivered work.
Manufacturing
Turn production complexity into plans teams can execute.
Production planning · Scheduling · Material yield
JNC · planning time 6 hrs → 1 min
Energy
Coordinate assets, markets, and uncertainty across operational horizons.
Unit commitment · Dispatch · Asset operation
ORCA · bp · NQCC · hybrid UCP workflow
Telecommunications
Improve network decisions using the infrastructure already in place.
Radio configuration · Capacity planning
SoftBank · +10% average downlink speed
Logistics & mobility
Plan routes, fleets, crews, and recovery as one connected system.
Routing · Fleet assignment · Recovery
Routing · dispatch · disruption recovery
Materials & design
Search complex design spaces with fewer experiments and clearer trade-offs.
Formulation · Structure · Process design
Formulation · structure · yield
THE COMMON THREAD
Each solution enables a team to choose the best feasible action from many combinations under real capacity, timing, policy, and data constraints.
Evidence in practice
Selected work
A cross-section of delivered projects, from production systems running today to national research programs proving out quantum-classical hybrid workloads.
Manufacturing
Manufacturing · CUSTOMER DEPLOYMENT
Production planning that can be recalculated when conditions change.
JNC Corporation
Equipment capacity, setup, product mix, and due dates are represented in one computable planning model.
6 hrs → 1 min
Decision
What should be produced, on which equipment, and in what sequence?
Modeling
Demand and product mix · Equipment and process data · Due dates and setup rules
Operational outcome
Create feasible production schedules and accelerate comparison and rescheduling when conditions change.
Telecommunications
Telecommunications · CUSTOMER PROOF OF CONCEPT
Improving average downlink speed without additional hardware.
Organization: SoftBank
Radio configurations across multiple base stations were translated into an optimization model for carrier-aggregation.
+10%
Decision
How should radio-network relationships be configured?
What is modelled
Base-station topology · Radio measurements · Traffic and coverage data
Operational outcome
Improved configuration · Scenario comparison · No additional hardware
Energy
Energy · PUBLIC RESEARCH COLLABORATION
Evaluating a path toward commercially relevant quantum computing.
Organization: ORCA · bp · NQCC
An industrial-scale unit commitment problem is used to evaluate a quantum-classical hybrid workflow. This public page does not claim demonstrated quantum advantage.
Hybrid UCP
Decision
Which generation assets should run, and at what output?
What is modelled
Demand forecast · Generation fleet · Cost and market data
Operational outcome
A feasible dispatch plan · Comparable classical and hybrid runs · A testable path to future compute
Rail & mobility
Rail & mobility · CUSTOMER STORY
Expressing experienced railway operators' judgement as a computable model.
Organization: JR Central
The public story shows how domain knowledge and operational judgement can be translated into a mathematical representation that teams can inspect and improve.
Expert → model
Decision
How should services and duties be rebuilt after disruption?
What is modelled
Timetable and live operations · Rolling stock and crew · Incident and passenger impact
Operational outcome
A recoverable timetable · Reduced disruption · Faster operator response
Manufacturing & materials
Manufacturing & materials · ENTERPRISE COLLABORATION
Building an organization capability for practical quantum computing adoption.
Organization: Kobe Steel
JIJ and Kobe Steel announced a multi-year framework to form a Quantum Center of Excellence and pursue implementation across complex business domains.
Quantum CoE
Decision
Which formulation and process conditions should be explored next?
What is modelled
Experimental data · Candidate ingredients · Target properties
Operational outcome
Ranked candidate formulations · Fewer experiments · Transparent trade-offs
Mobility
Mobility · CUSTOMER PROOF OF CONCEPT
Coordinating traffic signals across a road network.
Organization: Toyota Tsusho
A public Professional Service example reports a 20% reduction in waiting time through network-wide traffic signal optimization using Azure Quantum.
-20% wait
Decision
How should signals be coordinated across a network?
What is modelled
Traffic demand · Road topology · Signal phases
Operational outcome
Coordinated signal plans · Reduced delay · Better network flow
Beyond Commercial projects
National & multinational programs
JIJ leads and participates in publicly funded programmes that push optimization and quantum computing toward industrial use.
United Kingdom
SparQ
The UK’s national use-case project applying hybrid decomposition across classical and photonic quantum computing to unit commitment problems in the energy industry.
JIJ consortium lead. With bp, ORCA Computing and the National Quantum Computing Centre.
European Union
Q-NEKO
A EuroHPC Joint Undertaking program combining quantum technologies with high-performance computing, spanning 13 research and industry stakeholders across Finland, France, Germany, the UK, Czech Republic, Denmark and Japan.
JIJ consortium participant, representing the UK.
Japan
National quantum programs
Japan’s national quantum initiative spans hardware, middleware and enabling components across a portfolio of major research and development projects.
JIJ leading party on middleware, with G-QuAT for two major national middleware projects.
WHY THESE PROGRAMS ARE KEY FOR THE INDUSTRY
They connect industrial problems, advanced computing methods, and shared benchmarks beyond the scope of any single commercial engagement.
FROM PROJECT TO PLATFORM
From a solved instance to a decision system.
JijZept keeps models, experiments, compute methods, and operational workflows connected as the decision moves from exploration into use.
Explore JijZept
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01
Model
Represent the decision, data, and constraints in a form the team can inspect.
02
Compare
Evaluate formulations and compute paths against the same operational objective.
03
Operate
Connect the chosen method to repeatable workflows, APIs, and shared evidence.
START WITH THE DECISION
Have a problem that looks like one of these?
Many projects begin with a planning process handled by hand, or a model that has stopped scaling. Bring us the operation, the available data, and the constraints that make it difficult.
Talk to JIJ
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Making society computable
to unlock humanity's potential.
[JIJ Inc.]
#403, CIC, 3-3-6 Shibaura, Minato-ku, Tokyo,108-0023, JAPAN
[JIJ Europe Ltd.]
F25 Atlas Centre,
Rutherford Appleton Laboratory,
Harwell Campus OX11 0QX
United Kingdom
[JIJ EU (JIJ GmbH) ]
Beiersdorfstraße 12, 22529 Hamburg, Germany
Japan · United Kingdom · Germany · United States