Market Context — Why This Technology, Why Now

The global healthcare sector is undergoing a rapid digital transformation, with increasing pressure to improve operational efficiency and patient experience. Rising prevalence of age-related hearing loss and a growing focus on preventative health are fueling demand for advanced diagnostic tools. This technology aligns perfectly with these trends, enabling healthcare providers to enhance throughput, reduce costs, and deliver superior patient care in a competitive market.

Key Competitive Advantages
01

Reduces Hearing Measurement Time by 66%

02

Significantly Reduces Patient Burden

03

Secures Market Leadership with Robust IP

Market Opportunity
Medical Institutions & Health Check Centers
$500M globally (AI est.)
The increasing demand for hearing examinations due to aging populations and the growing need for efficiency and speed in medical settings could drive higher examination throughput upon adoption.
Large hospital networks Corporate health screening providers Government health agencies
Hearing Aid & Assistive Listening Device Manufacturers
$2.5B globally (AI est.)
High-precision and rapid auditory characteristic measurement directly supports product personalization and enhances user satisfaction in the fitting and adjustment processes for hearing aids.
Major hearing aid manufacturers Personal sound amplification product developers Audiology equipment suppliers
Digital Health & Wearable Devices
$6.5B globally (AI est.)
Applying this technology to wearable devices like smartwatches and earphones could enable daily hearing monitoring and early anomaly detection services, expanding consumer health applications.
Consumer electronics giants Digital health platform developers Smart earbud manufacturers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent establishes a robust scope of protection by effectively amending claims and clearly asserting technical superiority against rigorous examiner objections, overcoming five prior art references. It is a stable patent with low invalidation risk, providing a strong foundation for business development. The patent has 7 claims, filed by Kanazawa University, and successfully navigated examination with a well-crafted response to a rejection, indicating its strength and stability for licensees.

Competitive White Space

This patent primarily covers the method and system for rapid hearing characteristic measurement. White space exists in integrating this core technology with AI for predictive diagnostics, developing personalized hearing aid fitting algorithms, or extending its application to non-human auditory analysis.

Economic Impact
~$10K/year estimated inspection cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming hearing test time is reduced to one-third of conventional methods, the number of patients that can be examined per day increases by approximately 1.5 times. With an annual personnel cost of ~$40K (AI est.) per examination technician, a ~25% efficiency improvement could result in an annual cost reduction of ~$10K (AI est.) per technician/facility. If deployed across 10 facilities, an annual reduction effect of ~$100K (AI est.) is projected. Furthermore, increased patient throughput due to improved examination efficiency could lead to expanded revenue opportunities.

Speed to Market
6× faster than in-house development
This technology's auditory characteristic measurement algorithm is well-established, with detailed operational principles described in the patent specification. This eliminates the need for licensees to undertake zero-to-one R&D, significantly shortening development timelines. Early market entry is possible through software integration into existing acoustic measurement equipment or PC-based signal processing platforms, along with limited validation work, reducing development costs and risks while enabling rapid business expansion.
Competitive Positioning

X: Examination Efficiency
Y: Patient Burden Reduction

Business Models & Applications
🏥 Licensing to Medical Device Manufacturers
Provide licenses to integrate this technology into existing hearing examination equipment or new product developments, generating royalty revenue.
🤝 Joint Development & OEM Supply
Collaborate with hearing aid manufacturers or digital health companies to jointly develop and market products or services incorporating this technology.
👂 Healthcare Service Provision
Operate a proprietary hearing examination service using this technology, or provide it to health check institutions, earning service fees or data analysis fees.
Adjacent Application Opportunities
👵 Elderly Care & Monitoring
Home-Based Hearing Screening
Integrate this technology into home monitoring services for the elderly to provide regular, simple hearing screenings. This could support early detection of hearing loss and facilitate hearing aid adoption, potentially improving quality of life. It is expected to be deployed as an easy-to-operate device requiring no specialized knowledge.
🎮 Gaming & Entertainment
Personalized Audio Experience
Implement a system in games and VR/AR content that instantly measures user auditory characteristics and applies optimal audio profiles in real-time. This could enhance immersion and provide a tailored listening experience for individual users, potentially improving the quality of entertainment.
🏢 Occupational Health & Safety
Industrial Hearing Management System
Develop a system for regularly monitoring hearing loss risk in employees working in noisy environments. Since examinations are completed quickly, disruption to operations is minimized, and it could be used for optimizing hearing protection and health management. Early intervention may also reduce occupational hazard risks.
Integration Roadmap — Estimated 12-Month Deployment
Phase 1: Technical Validation & Requirements Definition
Duration: 3 months
Evaluate compatibility with the licensee's existing systems and product specifications, clarifying necessary customization requirements. Confirm technical efficacy through a Proof of Concept (PoC).
Phase 2: Prototype Development & Integration
Duration: 6 months
Develop a prototype integrating this technology's software module into existing systems based on defined requirements. Conduct functional testing and performance evaluation to advance towards productization.
Phase 3: Field Testing & Market Launch
Duration: 3 months
Confirm final performance and safety through field tests and clinical trials in real-world environments. Address regulatory requirements and proceed with full-scale market introduction and operational optimization.
Technical Feasibility
This technology is structured with clear steps: random noise output, reflection sound reception, and frequency analysis. It can be integrated as a software module into existing acoustic measurement equipment or PC-based signal processing systems. Utilizing general-purpose acoustic sensors and processing units, it avoids the need for large-scale capital investment and offers high compatibility with existing examination environments. Especially as a program, the barrier to integration with existing hardware is low.
Success Scenario
Upon adopting this technology, the average hearing examination time could be reduced from 30 minutes to 10 minutes. This could alleviate the burden on medical professionals and is estimated to increase the number of examinations per day by 1.5 times. As a result, it is expected to provide rapid diagnoses to more patients and enhance regional healthcare contributions. Furthermore, reduced patient examination stress may lead to improved repeat visit rates.
Patent Record
APPLICATION NO.
特願2021-153412
REGISTRATION NO.
7770670
FILING DATE
2021/09/21
GRANT DATE
2025/11/07
EXPIRATION DATE
2041/09/21
PATENT HOLDER
国立大学法人金沢大学
Examination History
2024年07月25日
出願審査請求書
2025年05月07日
拒絶理由通知書
2025年07月07日
手続補正書（自発・内容）
2025年07月07日
意見書
2025年10月21日
特許査定