Market Context — Why This Technology, Why Now

The global space industry faces increasing regulatory pressure for sustainable practices, driving demand for effective space debris removal solutions. Simultaneously, geopolitical tensions and the proliferation of drones necessitate advanced, non-lethal capture technologies for national security. This technology addresses these critical needs by offering a cost-effective, environmentally responsible, and highly adaptable solution for both orbital and atmospheric threats, positioning early adopters for significant market leadership.

Key Competitive Advantages
01

Improves capture success rates significantly by enabling uniform net deployment from compact, spring-driven mechanisms.

02

Eliminates secondary debris risk by using propellant-free, spring-driven net deployment mechanisms.

03

Ensures high-efficiency capture for diverse objects by radially deploying multiple weights to securely enclose complex debris or fast-moving UAVs.

Market Opportunity
Space Debris Removal 🛰️
$3.5B–$6.5B globally (AI est.)
International regulatory tightening and the demand for sustainable space utilization are driving this market, leading to active investment in related technologies.
Satellite operators Space logistics companies Government space agencies Aerospace defense contractors
Aviation & Defense ✈️
$0.5B–$2B domestically (AI est.)
Demand is expanding in the security sector for measures against unidentified aerial objects and drone capture, requiring new capture and neutralization technologies.
Defense contractors National security agencies Border patrol technology providers Airport security system integrators
Space Experimentation & Services 🧪
$0.5B–$2B globally (AI est.)
Applications for diverse missions such as object retrieval and sample collection in space are anticipated, holding the potential for creating new space services.
Space research organizations Commercial space station operators In-orbit servicing providers Scientific instrument manufacturers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a broad scope, covering the device body, net, weights, multiple weight ejection mechanisms, actuators, and the integrated capture/processing method. Its robust claims and swift grant after a single office action indicate strong originality and patentability over prior art, offering licensees a stable foundation for business development.

Competitive White Space

This patent primarily covers the net deployment mechanism and method. White space exists in advanced AI-driven target tracking, autonomous navigation for capture vehicles, or novel materials for net construction beyond the current scope.

Economic Impact
~$3.5M/year estimated operational cost savings per facility (AI est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming an average mission cost of ~$3.5M (AI est.) per space debris capture. This technology could reduce system development and operational costs by ~30% compared to conventional complex systems. For example, conducting 5 missions annually could yield (~$3.5M/mission × 5 missions) × 30% reduction = ~$5M/year in cost savings (AI est.). Miniaturization also reduces payload costs, potentially increasing mission frequency.

Speed to Market
6× faster than in-house development
This technology's net deployment mechanism, weight ejection mechanism, and actuator configurations are detailed in the patent specification, with established design methods. This allows licensees to significantly shorten development timelines by building upon existing patented technology rather than starting from scratch. The uniform net deployment mechanism and the spring-driven, secondary debris-free ejection system are already conceptually proven, enabling a rapid transition to the demonstration phase.
Competitive Positioning

X: Operational Efficiency & Safety
Y: Deployment Flexibility & Environmental Impact Reduction

Business Models & Applications
🚀 Debris Removal Service Provider
Utilize this device to offer space debris capture services to satellite operators and government agencies. A subscription or per-mission billing model could be considered.
🛰️ Device OEM Supply
Supply this net deployment device as an OEM to spacecraft and aircraft manufacturers, monetizing by providing it as part of their integrated systems.
🛡️ Defense & Security System Integration
Integrate this technology as part of systems for unidentified aerial object countermeasures or critical facility security, offering it as a solution to defense and security companies.
Adjacent Application Opportunities
🌊 Marine & Underwater Exploration
Marine Debris Capture & Biological Survey
This device could capture micro-floating debris or marine biological samples without damage. It could contribute to environmental monitoring, marine resource management, and deep-sea life research, potentially collecting samples 2-3 times faster than current methods.
🏗️ Construction & Infrastructure Inspection
High-Altitude & Hazardous Area Object Retrieval
Applicable as a remote-controlled device for safely and quickly retrieving fallen objects or suspicious items in high-altitude or hazardous areas. This could reduce worker exposure to risk by up to 80% and improve operational efficiency.
🌳 Agriculture & Environmental Management
Wildlife Management & Ecosystem Monitoring
Could be used as a non-lethal device to capture wildlife damaging crops or temporarily capture specific animals for ecological surveys. This enables environmentally conscious management, potentially reducing crop damage incidents by 15-20%.
Integration Roadmap — Estimated 27-Month Deployment
Concept Prototyping & Basic Design
Duration: 4 months
Conduct detailed design and simulations based on the patented technology, optimizing key parameters. Establish customization directions to meet specific licensee requirements.
Prototype Development & Performance Evaluation
Duration: 9 months
Manufacture a small-scale prototype and conduct initial ground-based net deployment and capture performance tests. Identify challenges for practical implementation through functional verification.
System Integration & Demonstration Testing
Duration: 14 months
Develop interfaces for integration into existing aircraft or small satellites, and conduct final demonstration tests under near-real-world conditions. Perform final adjustments for mass production.
Technical Feasibility
This technology is based on the simple physical principle of a spring-driven weight ejection mechanism, making it easy to miniaturize and lighten for integration into existing spacecraft or aircraft. The patent claims clearly specify concrete components such as the device body, weight ejection mechanism, and actuator, suggesting relatively easy integration with existing control systems. Utilizing general-purpose components and manufacturing processes can reduce new capital investment and lower technical hurdles for adoption.
Success Scenario
Adopting this technology could shorten system development time by approximately 2 years for space debris capture missions compared to conventional complex robotic arm systems. Furthermore, improved capture success rates could reduce mission retries, potentially cutting annual operational costs by up to 30%. This would enable more efficient debris removal missions, contributing to a sustainable space environment.
Patent Record
APPLICATION NO.
特願2021-111851
REGISTRATION NO.
6968377
FILING DATE
2021/07/05
GRANT DATE
2021/10/29
EXPIRATION DATE
2041/07/05
PATENT HOLDER
東京都公立大学法人
Examination History
2021年08月05日
出願審査請求書
2021年08月05日
早期審査に関する事情説明書
2021年08月31日
拒絶理由通知書
2021年08月31日
早期審査に関する通知書
2021年10月03日
手続補正書（自発・内容）
2021年10月03日
意見書
2021年10月14日
特許査定