Customers

From the factory floor

Mid-size manufacturers across discrete, process, and food sectors. Factory profiles are described by type and prefecture in keeping with Japanese B2B NDA convention — not by company name.

20-line metal stamping facility, Aichi Prefecture
30% reduction in unplanned downtime in the first 90 days

A precision stamping supplier running mixed press tonnage across 4 cells. Manual OEE consolidation from shift reports was consuming 3 person-hours every morning. After connecting Yamastro to their Mitsubishi PLCs and shift input stations, the plant supervisor receives real-time OEE before the morning standup. Cycle time deviation alerts caught a progressive die wear issue before it produced scrap.

30% unplanned downtime reduction
18 working days to live dashboard
Pharmaceutical batch manufacturer, Saitama
87% reduction in traceability query time per recall event

A pharmaceutical batch facility producing APIs. Lot traceability queries for customer audits and regulatory inspections required half a day of manual record assembly across 4 systems. Yamastro's traceability ledger now returns full genealogy — raw material, process parameters, equipment, operator records — in a single query. Used weekly by the quality team.

87% faster traceability query
1 query replaces 4 systems
Food packaging line, Kanagawa Prefecture
Allergen audit completed in 4 hours instead of 3 days

A 3-line filling and labeling facility with allergen changeover requirements between SKUs. Paper-based allergen lot logs were creating audit bottlenecks. Digital HACCP checkpoint records with sensor-backed timestamps now satisfy customer audit requirements without manual assembly. The last major customer audit was completed in a single afternoon.

4h vs. 3-day audit process
0 manual paper log entries
Chemical coating facility, Gunma Prefecture
OEE improved 11 points after six months of data-driven kaizen(改善)

A solvent-based coating operation with 5 coating lines and batch-to-batch yield variation. Without reliable batch genealogy, kaizen activities lacked a data baseline. After deploying Yamastro, the production engineering team established a before/after record for each improvement event. Eleven OEE points over six months came from four targeted kaizen cycles, each documented end-to-end in the system.

+11 OEE points in 6 months
4 documented kaizen cycles
+11 pts
Average OEE lift across Yamastro deployments
−87%
Average traceability query time reduction
18 days
Average time to live OEE dashboard from connection start
From Yamastro customer deployments. No external benchmark source.
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