Robot maker · registered
ACSL
Proprietary autonomous flight-control and autopilot stack originating from Kenzo Nonami's Chiba University laboratory, enabling beyond-visual-line-of-sight (Level 3/Level 4) autonomous flights. ACSL was the first company in Japan to obtain a Level 4 Class 1 UAS type certificate (March 2023). SOTEN pairs autonomy with ISO 15408-based security: encrypted communications, drone-controller pairing, hijack resistance and domestic cloud data storage, positioning it as the NDAA-compliant alternative to DJI. LTE-connected operation supports remote autonomous BVLOS missions.
Company overview
Identity and operating footprint
Robot models
Specifications remain vendor-claimed
PF4
- Long-range multi-use drone flown in dual-drone logistics and patrol operations
Two PF4 units flown simultaneously for Japan Post logistics and patrol missions in Toyooka City, a first in Japan for identical-model simultaneous operations
Claim source
SOTEN
- 25-minute maximum flight time at 1,720 g operating weight
Maximum flight time with standard camera at 8 m/s airspeed; operating weight with standard camera and battery
Claim source - 4 km transmission range with swappable 4K/IR/multispectral/zoom cameras
Video transmission range without obstructions or radio interference; interchangeable camera system
Claim source - ISO 15408-based security with encrypted communications and hijack resistance
Security design preventing data leakage and hijacking, with drone-controller pairing and optional encrypted storage in Japanese cloud
Claim source
Deployment log
Announced and cited only
Funding history
Publicly announced rounds
IPO
Investors undisclosed
Round sourceCompany timeline
Milestones and announcements
Source ledger
5 unique public sources