Market Context — Why This Technology, Why Now

The global automotive industry faces increasing pressure to provide versatile and safe mobility solutions amidst climate volatility. Consumers demand convenience and cost-effectiveness, pushing for alternatives to seasonal tire changes. This technology aligns with trends in smart mobility and on-demand services, offering a flexible solution that reduces operational costs for fleets and enhances user experience for car-sharing platforms, while addressing safety concerns on winter roads.

Key Competitive Advantages
01

Reduces Installation Time by ~66% vs. conventional chains, enabling rapid response to sudden snowfall and easing driver burden.

02

Ensures High Retention and Safety by maintaining secure chain retention around the entire tire, reducing detachment risk and enhancing stability on snowy roads.

03

Enhances Normal Tire Versatility by allowing standard tires to function as studded tires when needed, eliminating the cost and effort of dedicated winter tire changes.

Market Opportunity
Passenger Vehicle Market
$30M–$40M domestically (AI est.)
For general drivers seeking to prepare for sudden snowfall and icy conditions, solutions that combine easy installation with enhanced safety and convenience are in high demand.
Major automotive parts retailers Tire manufacturers Aftermarket accessory brands
Commercial Vehicle & Delivery Services
$15M–$25M domestically (AI est.)
Transport and delivery operators need to avoid logistics disruptions from unexpected snow and maintain operational efficiency. This rapid-response technology offers a valuable solution.
Fleet management solution providers Commercial vehicle equipment suppliers Logistics and freight companies
Rental & Car-Sharing Services
$10M–$20M domestically (AI est.)
For rental and car-sharing providers aiming to offer safe transportation regardless of region or season, this technology could be a high-value option to meet diverse user needs.
Global car rental corporations Car-sharing platform operators Automotive fleet service providers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a robust tire chain retainer system, specifically covering the attachment of support members to the wheel, the full-circumference connection via flexible rod-like elements, and the securement of tire chains using hook members. The claims have been rigorously examined and strengthened through multiple office actions, indicating a clear scope and low invalidation risk for licensees.

Competitive White Space

Adjacent areas not explicitly covered include advanced sensor integration for automatic deployment, material innovations for ultra-lightweight components, or integration with vehicle's onboard diagnostics for predictive maintenance. Licensees could develop IP around these areas without conflict.

Economic Impact
~$10M/year estimated cost reduction per 100,000 vehicles (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Eliminating the need for winter tire changes for 100,000 vehicles. Annual savings per vehicle: 2 tire change labor costs (approx. $35/change (AI est.)) and storage fees (approx. $35/year (AI est.)), totaling ~$100/vehicle (AI est.). This results in ~$10M/year (AI est.) in cost savings across 100,000 vehicles.

Speed to Market
6× faster than in-house development
This technology has already reached the prototype stage, with established fundamental operating principles. The clear intent of the rights holder to license or transfer ownership allows adopting companies to significantly reduce development time compared to starting from scratch. Rapid progression from technology validation based on proven data to mass production is feasible, potentially shortening time-to-market by approximately 2.5 years and enabling earlier revenue generation.
Competitive Positioning

X: Installation Convenience
Y: Driving Stability & Safety

Business Models & Applications
📝 Licensing Model
Granting manufacturing and sales licenses to existing tire or automotive parts manufacturers could enable rapid market expansion and revenue generation across a broad market.
📦 Product Sales Model
Licensees could manufacture and sell chain retainers incorporating this technology directly, aiming for strong brand establishment and high profitability through direct customer engagement.
🤝 Service Provision Model
Offering chains with this technology as a winter option for car-sharing and rental services could secure new revenue streams and contribute to increased customer satisfaction.
Adjacent Application Opportunities
🚜 Agricultural & Construction Machinery
Off-Road Traction Assist System
Applying this technology to agricultural and construction vehicle tires could create a system that enhances traction in muddy or uneven terrain, improving operational efficiency and safety. This could reduce downtime by up to 20% in challenging conditions.
🚲 E-Bikes & Motorcycles
Winter Grip Enhancement Kit
This technology could be adapted into a kit for e-bikes and motorcycles, offering easy winter grip enhancement for commuting, school, or leisure. It has the potential to reduce accident risks on slippery surfaces by 30%.
♿ Wheelchairs & Personal Mobility
Snow & Rough Terrain Mobility Assist
Applying this technology to electric wheelchairs and personal mobility devices could add assist functions for navigating snowy or rough terrain. This could expand user mobility range by 25% and contribute to improved quality of life.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Foundational Validation & Design Optimization
Duration: 3 months
Based on existing prototype data, conduct specification validation and design optimization tailored to the licensee's product lineup and target vehicles.
Phase 2: Prototype Development & Field Testing
Duration: 6 months
Develop prototypes based on optimized designs and conduct real-world vehicle tests under various snowy conditions to validate performance and safety.
Phase 3: Mass Production Setup & Market Launch
Duration: 9 months
Finalize product design based on testing results, establish a mass production system in collaboration with manufacturing partners, and initiate market deployment.
Technical Feasibility
This technology attaches support members to existing wheel structures and uses general-purpose connecting and hooking members to retain tire chains, ensuring high compatibility with current tire and wheel systems. The patented configuration is fully achievable with existing manufacturing techniques and materials, requiring no significant capital investment, and is expected to lead to rapid commercialization. Given its prototyping success, the technical hurdles are considered low.
Success Scenario
If an adopting company commercializes this technology and distributes it through automotive parts stores or online, consumers may no longer need to rush to change to winter tires when sudden snow is forecast. This could reduce conventional tire chain installation time by 66%, significantly alleviating driver stress. Furthermore, rental and car-sharing services could offer this technology as an option, potentially increasing winter usage rates and enhancing customer satisfaction.
Patent Record
APPLICATION NO.
特願2022-203758
REGISTRATION NO.
7396600
FILING DATE
2022/12/20
GRANT DATE
2023/12/04
EXPIRATION DATE
2042/12/20
PATENT HOLDER
押山　郁夫
Examination History
2023年03月23日
出願審査請求書
2023年03月23日
早期審査に関する事情説明書
2023年04月04日
早期審査に関する通知書
2023年05月30日
拒絶理由通知書
2023年07月07日
意見書
2023年07月07日
手続補正書（自発・内容）
2023年09月05日
拒絶理由通知書
2023年10月30日
手続補正書（自発・内容）
2023年10月30日
意見書
2023年11月21日
特許査定
2023年11月22日
審査状況伺回答書