Market Context — Why This Technology, Why Now

Global industries face increasing pressure to automate and reduce operational overhead amidst rising labor costs and supply chain complexities. This technology directly addresses these challenges by enabling seamless, cable-free power delivery for AGVs, robots, and IoT ecosystems. It supports the transition to fully autonomous operations, enhances energy efficiency, and improves system reliability, aligning with global sustainability and smart infrastructure initiatives.

Key Competitive Advantages
01

Reduces initial investment and maintenance costs by up to 30% by minimizing component count and circuit complexity through multi-mode resonance at a single frequency.

02

Boosts power transfer efficiency by 20% by selecting optimal resonant modes, minimizing power loss and maximizing energy efficiency to reduce operational costs.

03

Offers flexible support for multiple receiving devices with different mode frequencies using a single power transmitter, enhancing system versatility for diverse applications.

Market Opportunity
🏭 Smart Factory Automation
$3.5B globally (AI est.)
Accelerates full automation and labor savings on production lines by enabling automatic charging for AGVs and industrial robots, and power supply for sensor networks. Could significantly reduce maintenance costs.
Industrial automation solution providers AGV and robotics manufacturers Factory equipment integrators
🚗 EV & Autonomous Driving
$4.5B globally (AI est.)
Applicable to automatic charging during parking and power infrastructure for vehicles in motion. Eliminates charging hassle, promoting EV adoption and potentially serving as a foundational technology for future autonomous driving societies.
Automotive OEMs and Tier 1 suppliers EV charging infrastructure developers Autonomous vehicle technology companies
🏠 Smart Home & Office
$2B globally (AI est.)
Enables cable-free power supply for numerous IoT devices and smart appliances. Enhances spatial design flexibility and improves user experience.
Smart home device manufacturers Office automation system providers Consumer electronics brands
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a wireless power transfer system that uses multiple power transmission coils with the same resonant frequency to generate various oscillation modes, allowing a high-frequency power source to select an optimal mode for efficient power supply. The claims are robust, having successfully overcome a rejection notice, indicating a stable and defensible scope.

Competitive White Space

The patent primarily focuses on multi-mode resonance for power transfer. Adjacent areas not explicitly covered could include advanced power management ICs for receiving devices, energy harvesting from ambient RF, or integration with smart grid systems for dynamic power allocation.

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

Assuming annual personnel costs for AGV/robot battery exchange and charging station setup (1 operator at ~$35K/year (AI est.)), cable wiring and maintenance costs (~$50K/year (AI est.)), and power loss (~$50K/year (AI est.)), totaling ~$135K/year (AI est.). This technology could potentially reduce these costs by approximately 100%.

Speed to Market
6× faster than in-house development
This technology has established patent protection for its fundamental principles of wireless power transfer and multi-mode resonance generation algorithms. Existing theoretical verification and simulation data could significantly shorten the basic research phase for licensees. Companies can focus on design and development for integration into existing systems, accelerating time-to-market and reducing commercialization risks.
Competitive Positioning

X: Cost Efficiency
Y: Powering Flexibility

Business Models & Applications
💡 Product Integration License
Offers licenses for integrating this technology into existing products (robots, home appliances, vehicles, etc.), contributing to product value enhancement and differentiation.
🔌 Wireless Power Module Sales
Develops and supplies wireless power modules incorporating this technology as components to manufacturers across various industries, enabling broad market expansion.
🌐 System Solution Provision
Provides comprehensive wireless power systems for specific environments such as factories, offices, or public spaces, offering direct solutions to licensee challenges.
Adjacent Application Opportunities
🏥 Medical & Healthcare
In-Body Implantable Device Power
Applicable to non-contact power supply for in-body devices like pacemakers and implantable sensors. Could reduce surgical risks associated with battery replacement, alleviating patient burden and contributing to innovation in medical fields.
🚁 Drones & UAVs
Autonomous Drone Charging Stations
Integrate this technology into charging stations for surveillance and logistics drones. Wireless charging initiates upon landing, eliminating manual battery swaps and enabling continuous operation and full automation for drones.
🤖 Service Robots
Self-Charging Robots for Commercial Facilities
A system where cleaning or guidance robots autonomously navigate commercial facilities and wirelessly charge at designated spots. This eliminates human intervention for charging, maximizing robot operational uptime.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Technical Evaluation & Design
Duration: 3 months
Conduct fundamental principle and performance evaluation of the technology, verifying compatibility with the licensee's existing systems. Define specific system requirements and complete basic design.
Phase 2: Prototype Development & Testing
Duration: 6 months
Develop a prototype incorporating this technology based on the design. Perform performance tests, safety evaluations, and efficiency verification in a real-world environment, identifying areas for improvement.
Phase 3: Pilot Implementation & Production Prep
Duration: 9 months
Conduct large-scale pilot experiments in near-operational environments to confirm reliability. Establish manufacturing processes for mass production and formulate market entry strategies.
Technical Feasibility
This technology is based on a high-frequency power source, an exciter, and a power transmission resonator, making it highly compatible with existing wireless power systems and allowing for integration with relatively minor modifications. The ability to generate multiple resonant modes at a single resonant frequency offers a technical advantage, enabling functional expansion without significant changes to existing hardware configurations, thus lowering adoption barriers.
Success Scenario
Implementing this technology could fully wireless-enable charging infrastructure for AGVs and robots in factories, eliminating the need for charging stations or manual battery swaps. This is estimated to boost operational rates by 20% and expand annual production by 1.2 times. Furthermore, it is expected to significantly reduce downtime caused by wiring issues, contributing to the establishment of a sustainable production system.
Patent Record
APPLICATION NO.
特願2021-047860
REGISTRATION NO.
7653133
FILING DATE
2021/03/22
GRANT DATE
2025/03/19
EXPIRATION DATE
2041/03/22
PATENT HOLDER
国立大学法人山梨大学
Examination History
2024年02月05日
出願審査請求書
2025年01月07日
拒絶理由通知書
2025年02月17日
意見書
2025年02月17日
手続補正書（自発・内容）
2025年03月05日
特許査定