Market Context — Why This Technology, Why Now

Industries worldwide are grappling with the escalating costs of maintaining vast sensor networks and the environmental impact of battery waste. Regulatory pressures for sustainable practices and the drive for operational efficiency are accelerating the adoption of energy harvesting solutions. This technology aligns perfectly with the global shift towards autonomous systems and green manufacturing, offering a pathway to reduce carbon footprints and enhance data collection capabilities in previously inaccessible environments.

Key Competitive Advantages
01

Reduces operational costs by up to 80% by eliminating battery replacement and wiring, significantly cutting labor and component costs for sensor installation and maintenance.

02

Detects weak vibrations and stresses with high sensitivity by optimizing magnetic anisotropy in the magnetic film, enabling high-precision detection of environmental vibrations and subtle strains previously difficult with conventional technologies.

03

Enhances environmental sustainability and reduces impact by eliminating battery waste and utilizing renewable energy, significantly contributing to a licensee's ESG management and SDG achievement.

Market Opportunity
Industrial IoT (IIoT) 🏭
$6B–$7B globally (AI est.)
There is a growing need for autonomous operation of numerous sensors in manufacturing line equipment monitoring and predictive maintenance. This power-supply-free technology could dramatically improve operational efficiency, driving its adoption.
Industrial automation solution providers Predictive maintenance platform developers Factory equipment OEMs Large-scale manufacturing corporations
Smart Infrastructure 🏗️
$3B–$4B globally (AI est.)
Monitoring structures like bridges, tunnels, and roads requires extensive, long-term data collection. This self-powered, wiring-free technology could significantly reduce installation and maintenance costs in harsh environments, contributing to extended infrastructure lifespan.
Civil engineering and construction firms Infrastructure monitoring system providers Government agencies for public works Smart city technology developers
Wearable Devices ⌚
$1.5B–$2.5B globally (AI est.)
For healthcare and sports wearables, battery replacement is a major inconvenience. This technology, which generates power from subtle body movements or environmental vibrations, could accelerate the development of battery-less devices and contribute to market expansion.
Consumer electronics manufacturers Healthcare technology companies Sports and fitness device innovators Medical device OEMs
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a self-powered generation element and sensor that detect weak vibrations and stresses with high sensitivity using a magnetic film with optimized magnetic anisotropy. The claims were successfully defended against a rejection, indicating a robust and stable scope of protection, supported by 6 claims and overcoming 6 prior art references.

Competitive White Space

This patent primarily focuses on magnetostrictive energy harvesting. White space exists in integrating advanced AI/ML for data analytics from these sensors or exploring alternative energy harvesting mechanisms like thermoelectric or solar for hybrid systems.

Economic Impact
~$150K/year estimated operational cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Deploying 1,000 conventional battery-powered sensors could incur annual labor and component costs for battery replacement and maintenance estimated at ~$150K (AI est.). This self-powered sensor technology has the potential to reduce these operational costs by 80%, leading to annual savings of over ~$150K (AI est.). Additionally, eliminating wiring could significantly reduce initial installation costs.

Speed to Market
6× faster than in-house development
This technology is based on clear physical principles of magnetic anisotropy control in magnetic films, promising stable power generation. Key components like magnetic films and coils can be realized with existing materials, eliminating the need for complex new material development or extensive infrastructure. This could significantly shorten development time and reduce time-to-market from approximately 3.0 years to 0.5 years. This technical maturity offers a significant advantage for licensees to establish early market leadership.
Competitive Positioning

X: Operational Cost Efficiency
Y: Installation & Maintenance Ease

Business Models & Applications
💡 Sensor Module Provision
This business model involves developing and providing self-powered sensor modules, leveraging this technology, to IoT device manufacturers and system integrators.
🤝 Technology Licensing
This model aims to disseminate the technology and generate revenue by granting implementation rights for this patent to licensees, potentially limited by specific industrial fields or regions. The rights holder's intent to license has been confirmed.
⚙️ Solution Provision
This model offers turn-key solutions leveraging this technology, such as predictive maintenance systems or environmental monitoring systems, tailored to solve specific challenges.
Adjacent Application Opportunities
Healthcare & Medical 🏥
Battery-Free Biosensors
This technology could generate power from subtle patient movements or pulse, enabling battery-free wearable biosensors or implantable medical devices. This could reduce patient burden and allow long-term data collection, potentially improving remote care and preventive medicine quality.
Automotive & MaaS 🚗
Self-Powered Tire & Road Condition Sensors
This could detect subtle vibrations from tire deformation or road surfaces during driving, functioning as self-powered sensors. Real-time monitoring of tire wear and road conditions could enhance autonomous driving safety, optimize maintenance, and improve operational efficiency in MaaS.
Smart Home & Building 🏠
Energy Harvesting Smart Sensors
This could generate power from subtle indoor air vibrations, human movement, or temperature changes, for sensors integrated into lighting control, HVAC management, and security systems. Eliminating wiring could increase installation flexibility, contributing to improved building energy efficiency, comfort, and safety.
Integration Roadmap — Estimated 24-Month Deployment
Phase 1: Technology Evaluation & Concept Design
Duration: 6 months
Evaluate the basic performance of this technology and analyze its compatibility with a licensee's existing systems and products. Develop specific use cases and product concepts.
Phase 2: Prototype Development & Pilot Deployment
Duration: 9 months
Develop a small-scale prototype based on the concept. Conduct performance verification under near-real-world conditions and initiate limited pilot operations to collect initial data.
Phase 3: Full-Scale Rollout & Optimization
Duration: 9 months
Finalize product design based on pilot results and plan for mass production. Develop strategies for large-scale market introduction and implement continuous performance monitoring and improvement.
Technical Feasibility
This power generation element features a relatively simple structure of a strip-shaped magnetic film and a coil, making it easy to integrate into existing sensor modules or apply to new devices. The patent claims do not require specific complex manufacturing processes or specialized equipment, suggesting that licensees could implement it at a relatively low cost without significant changes to existing production lines or supply chains. This indicates a low technical barrier to adoption.
Success Scenario
Implementing this technology could enable licensees to deploy autonomous, high-sensitivity sensors in remote areas or on mobile objects where power supply was previously challenging. This could expand predictive maintenance data collection points on manufacturing lines by 1.5 times and reduce failure rates by an estimated 20%. Furthermore, eliminating sensor battery replacement and wiring could reduce annual operational costs by up to 80% and contribute to productivity gains through redeployment of maintenance personnel.
Patent Record
APPLICATION NO.
特願2020-052571
REGISTRATION NO.
7450919
FILING DATE
2020/03/24
GRANT DATE
2024/03/08
EXPIRATION DATE
2040/03/24
PATENT HOLDER
国立大学法人信州大学
Examination History
2022年11月16日
出願審査請求書
2023年10月03日
拒絶理由通知書
2023年11月29日
手続補正書（自発・内容）
2023年11月29日
意見書
2024年02月20日
特許査定