
Bringing together society's collective wisdom to eliminate avoidable harm in healthcare
With AI and the cloud,
patient safety moves to the next stage.
A next-generation patient safety system: the incident reporting system developed and proven at Nagoya University Hospital, made available to every healthcare organization through AI and cloud technology.



A Nagoya University venture
Bringing university research into practice
120K
AI trained on 120,000 reports from Nagoya University Hospital
Risk measurement grounded in real clinical data
3–4min
Reports written in 3–4 minutes on average
Minimizing the reporting burden on frontline staff
Three things Zeroharm changes
Reducing the burden on patient safety managers, by design
POINT 01
Everything starts with a report.
Understanding what is really happening, taking countermeasures, changing the frontline — the starting point is always a report from the field. That is why Zeroharm treats getting reports submitted as what matters most.
The keys are making reporting easy and making it feel safe. Zeroharm cuts the effort with reports completed in 3–4 minutes on average, AI-assisted input, and smartphone support — and lowers the psychological hurdle with anonymous reporting.
POINT 02
Turn tallying time into analysis time.
Receive reports, open them in Excel, clean them up, classify, tally, chart, and turn them into slides. Repeated every month, this routine steals the time that should go to analysis and countermeasures.
With Zeroharm, just pick your conditions to draw Pareto charts, simple tallies, heatmaps, control charts, and more. Even tens of thousands of reports can be filtered in seconds.
Before
7steps
- 1Receive reports
- 2Open in Excel
- 3Clean up
- 4Classify
- 5Tally
- 6Make charts
- 7Build slides
Repeated every month
Zeroharm
2steps
- 1Pick conditions
- 2Output charts
Draw Pareto charts, simple tallies, and control charts just by picking conditions. Filter tens of thousands of reports in seconds.
POINT 03
Turn "this feels risky" into numbers.
The reports that lead to serious events are the ones buried in the daily stream. Zeroharm's AI, trained on real clinical data, quantifies risk along two axes — fault and severity — and visualizes the importance of each incident.
It also tracks changes in hospital-wide risk to catch unusual movement and detect early signs of serious events.

Connected reports prevent the next harm.
Sharing the patient safety knowledge accumulated on the frontline across hospitals.
Building a platform where knowledge circulates, aiming for zero avoidable adverse events —
that is the future Zeroharm is setting out to realize.
Data sovereignty stays with each healthcare organization, and sharing happens only after anonymization.
By making incidents both easy to report and easy to analyze and act on, we aim to bring medical harm to zero.
A strong ally not only for large hospitals, but also for solo risk managers, clinics, and home-care providers.
Value returned to you
Benchmark comparison
See objectively where you stand among peers
Risk analysis
Visualize risk trends by department and category
Suggested preventive measures
AI proposes standardized countermeasures
Key Features
Features born from frontline challenges
The burden on those who report, and on those who receive. Every Zeroharm feature was born from the voices of the medical frontline.
Start by trying Zeroharm for free
We offer an online demo and a hands-on trial in a real environment
STEP 01Free
Online demo
See the actual screens as we walk you through the features and workflow.
STEP 02Free
Trial
Use Zeroharm in a real environment and see how it fits your operations.
The trial becomes available after you have seen the demo.
The advantages of a cloud system
SaaS you use from a browser — no servers in your hospital
Typical on-premises: servers installed and managed in-house
Requires buying and installing servers,
plus in-house upkeep and management
Zeroharm (cloud): just use your browser
Servers live in the cloud.
We handle operations and maintenance
| Category | Typical on-premises reporting system | Zeroharm (cloud) |
|---|---|---|
| Initial cost | Servers and other hardware must be purchased, so upfront costs are high. | No hardware to buy, keeping initial costs down. |
| Operations & maintenance | Hardware must be managed in-house or entrusted to a vendor. | No hardware for your hospital to manage. |
| Feature updates | Typically a one-time purchase, with extra fees for major updates every few years. | Regularly updated to the latest features and UI — always current. |
| Integration & AI | Closed environments make hospital-to-hospital connection and AI adoption difficult or costly. | Enables hospital-to-hospital connection and low-cost AI. |
Zeroharm runs in your web browser and supports Microsoft Edge and Google Chrome.
The path to adoption
Before you sign, you can try the real environment and see how it feels on the frontline
- 01
Contact us / request a free demo
Reach out anytime through the form.
- 02
Online demo
We walk you through the screens and features live.
- 03
Quotation
We provide a quote based on your scale of use.
- 04
TrialBefore contract
Try Zeroharm in a real environment.
- 05
Initial setupBefore contract
Set up departments, users, and report formats together with us.
- 06
Hands-on check on the frontlineBefore contract
Use it in daily practice and confirm it fits your operations.
- 07
Contract
Once you are satisfied, we proceed with the contract.
- 08
Go live
Start running in production.
News
News articles are currently available in Japanese only.





