Market Context — Why This Technology, Why Now

The global push for higher data rates and ubiquitous connectivity, driven by 5G, satellite communications, and autonomous systems, intensifies the demand for robust electromagnetic interference (EMI) mitigation. Stricter regulatory standards for spectral efficiency and device compatibility create a competitive imperative for manufacturers to integrate superior filtering solutions. This technology enables signal integrity, system reliability, and more compact, energy-efficient designs.

Key Competitive Advantages
01

Achieves 1.5x sharper frequency attenuation characteristics compared to conventional methods by maximizing cavity resonance efficiency.

02

Enables more compact and lightweight device designs by achieving equivalent performance in a smaller footprint.

03

Secures long-term market advantage with a robust patent, validated through rigorous prior art examination against 4 references.

Market Opportunity
Communication Equipment
$1B–$2B globally (AI est.)
High-precision filters are essential for 5G base stations and satellite communication to suppress adjacent channel interference and ensure stable operation in high-frequency bands.
5G infrastructure providers Satellite communication equipment manufacturers Wireless device component suppliers
Automotive Radar Systems
$0.5B–$1.5B globally (AI est.)
Accurate target identification and noise removal are critical for safety in millimeter-wave radar systems used in autonomous driving and Advanced Driver-Assistance Systems (ADAS).
Automotive electronics suppliers ADAS system developers Millimeter-wave sensor manufacturers
Medical Devices
$500M–$600M globally (AI est.)
Medical equipment such as MRI and diagnostic devices require high resistance to external electromagnetic noise due to their handling of weak biological signals.
Medical imaging equipment OEMs Diagnostic device manufacturers Healthcare technology integrators
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent establishes robust protection for a core technology combining a rectangular waveguide with a narrowed section and a cylindrical cavity, covering it through 7 claims. It successfully demonstrated clear differentiation from four prior art references during examination, indicating strong inventive merit and resilience against invalidation.

Competitive White Space

This patent focuses on waveguide-based notch filters with a specific cavity and narrowed section design. White space exists in exploring alternative filter topologies, such as surface acoustic wave (SAW) or bulk acoustic wave (BAW) filters, or integrating active components for tunable frequency response.

Economic Impact
~$100K/year estimated operational cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Implementing this technology could reduce maintenance frequency and adjustment labor compared to conventional notch filters. For example, for 100 operational filters, assuming an annual maintenance cost of $1,350/unit (AI est.), this technology could reduce costs by 1/3, resulting in a ~$90K (AI est.) saving (100 units × $1,350/unit × 2/3). Additionally, a 10% reduction in power consumption, estimated at $3,350/unit (AI est.) annually, could save ~$35K (AI est.) (100 units × $3,350/unit × 0.1). Total estimated annual operational cost savings could reach ~$125K (AI est.).

Speed to Market
6× faster than in-house development
This technology is the culmination of fundamental and applied research by a university-affiliated institution, with its operating principles already established. The performance enhancement mechanism through the narrowed section is theoretically validated, and performance evaluation can be conducted using existing electromagnetic simulation and measurement techniques. Since technical verification is complete, licensees could significantly shorten design and development cycles, potentially reducing time to market by approximately 2.5 years.
Competitive Positioning

X: Frequency Selectivity & Precision
Y: Miniaturization & Integration Flexibility

Business Models & Applications
⚙️ High-Performance Component Supply Model
Provide high-efficiency notch filters incorporating this technology as components to finished product manufacturers. This model enables product differentiation through superior performance and miniaturization.
🤝 Technology Licensing Model
License the manufacturing and design know-how of this technology to filter manufacturers specializing in specific frequency bands or applications, accelerating broad market expansion.
💡 Solution Integration Model
Offer this technology as a comprehensive solution, including integration support and customized design, to communication infrastructure providers and medical device manufacturers.
Adjacent Application Opportunities
📡 Satellite Communication & Space Development
Compact, High-Reliability Satellite Filters
Leveraging its compact and high-efficiency characteristics, this technology could be adapted for communication filters in satellites and space probes. It has the potential to contribute to payload weight reduction and improved communication quality, accelerating advancements in the space industry, where every kilogram saved is critical.
🚗 Autonomous Driving & ADAS
High-Precision Millimeter-Wave Radar Noise Cancellation
This technology could efficiently remove electromagnetic interference in millimeter-wave radar for autonomous vehicles, enhancing obstacle recognition accuracy in adverse weather or complex traffic. This is expected to significantly improve autonomous driving safety and reliability by reducing false positives by an estimated 20-30%.
🏥 Medical & Healthcare
EMI Mitigation for Advanced Diagnostic Equipment
This technology has the potential to reduce electromagnetic noise in medical devices like MRI and ultrasound diagnostic equipment, enabling clearer, higher-resolution imaging. This could contribute to improved diagnostic accuracy by up to 15% and enhanced patient comfort.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Proof of Concept & Requirements Definition
Duration: 3 months
Verify the basic performance of this technology and define detailed performance requirements and compatibility with the licensee's existing systems or product lines.
Phase 2: Design, Prototyping & Evaluation
Duration: 9 months
Based on defined requirements, design custom notch filters, manufacture prototypes, and conduct performance evaluations under real-world conditions for optimization.
Phase 3: Mass Production & Deployment
Duration: 6 months
Following final prototype validation, establish mass production capabilities and initiate full-scale integration into the licensee's products or system deployment.
Technical Feasibility
This technology combines relatively common microwave components—a rectangular waveguide and a cylindrical cavity—with a structural innovation: a narrowed section. The patent claims provide specific details on dimensions and arrangement, making it achievable using existing waveguide manufacturing and precision machining techniques. It does not require new specialized materials or significant capital investment, allowing licensees to integrate it into existing manufacturing processes with relatively low barriers, enabling rapid implementation.
Success Scenario
Implementing this technology could enable communication equipment and sensor systems to achieve clearer signal transmission and higher frequency selectivity. This may enhance overall system reliability and reduce the risk of malfunctions. Furthermore, the filter's miniaturization could increase product design flexibility, allowing for the development of compact devices that meet new market demands. This has the potential to strengthen product competitiveness and expand market share.
Patent Record
APPLICATION NO.
特願2022-533132
REGISTRATION NO.
7197956
FILING DATE
2021/12/01
GRANT DATE
2022/12/20
EXPIRATION DATE
2041/12/01
PATENT HOLDER
大学共同利用機関法人自然科学研究機構
Examination History
2022年06月02日
早期審査に関する事情説明書
2022年06月02日
出願審査請求書
2022年06月23日
手続補正書（自発・内容）
2022年07月19日
早期審査に関する通知書
2022年10月12日
拒絶理由通知書
2022年10月24日
手続補正書（自発・内容）
2022年10月24日
意見書
2022年12月01日
特許査定