Market Context — Why This Technology, Why Now

The increasing global demand for sustainable and chemical-free solutions is driving innovation in material science, particularly in public health. With growing regulatory scrutiny on chemical usage and a heightened consumer preference for safer, long-lasting hygiene, industries face pressure to adopt advanced antiviral technologies. This patent meets these demands by offering a durable, environmentally benign solution that reduces operational overhead and enhances brand trust in a competitive market.

Key Competitive Advantages
01

Provides durable physical antiviral effect: Utilizes a physical microstructure mechanism, ensuring semi-permanent efficacy without chemical depletion. Significantly reduces reapplication and replacement labor and costs.

02

Ensures zero environmental impact and high safety: Eliminates chemical agents, resulting in no environmental discharge and minimal human health impact. Safe for use in food-related and medical environments.

03

Offers strong uniqueness and long-term competitive advantage: With only three prior art documents, its technical superiority is clear. The exclusivity until 2042 enables early market share capture.

Market Opportunity
🏥 Medical & Nursing Care Facilities
$650M–$1.3B globally (AI est.)
Infection control, patient and staff safety are paramount concerns, driving high demand for durable and safe antiviral surfaces.
Hospital equipment manufacturers Medical device surface treatment providers Nursing home facility management groups
🚌 Public Transport & Commercial Facilities
$550M–$1.1B globally (AI est.)
Reducing infection risk in high-traffic public spaces directly enhances user confidence and improves corporate image.
Public transport operators Commercial property developers Retail fixture manufacturers
🍔 Food Manufacturing & Processing
$350M–$700M globally (AI est.)
Strict food safety standards, foreign object prevention, and rigorous hygiene management are required, making this ideal for non-food-contact surfaces.
Food processing equipment manufacturers Food packaging material suppliers Industrial kitchen surface providers
🏠 Home Appliances & Building Materials
$450M–$900M globally (AI est.)
Responding to heightened consumer hygiene awareness, integrating antiviral functions into everyday products and building materials creates significant added value.
Major home appliance manufacturers Interior building material suppliers Smart home device developers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent broadly protects the core technology of antiviral materials featuring multiple columnar microstructures. Its strong claims, having overcome a rejection by the examiner with precise amendments and arguments, demonstrate robust novelty and inventiveness, making it a resilient asset for licensees.

Competitive White Space

This patent primarily covers physical antiviral microstructures. White space exists in integrating this technology with active self-cleaning mechanisms or advanced sensor-based contamination detection systems.

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

Assuming a licensee applies this technology to 10,000 sqm of surface area in public or medical facilities. Traditional disinfection, performed twice weekly at ~$470/session (AI est.) for labor and chemicals, costs ~$48.5K/year (AI est.). Reducing disinfection frequency to once a month with this technology could yield direct operational cost savings of ~$43K/year (AI est.). Including indirect benefits like reduced infection risk, enhanced brand value, and extended product lifespan, the total economic impact could exceed ~$150K/year (AI est.).

Speed to Market
3× faster than in-house development
This technology is based on established fundamental principles for microstructure design and formation, with accumulated knowledge from university research on basic antiviral efficacy. Licensees avoid initial R&D, focusing instead on optimizing for specific products and conducting validation tests, which could significantly accelerate time to market due to high compatibility with existing material manufacturing processes.
Competitive Positioning

X: Durable Antiviral Efficacy
Y: Environmental Safety & Cost Efficiency

Business Models & Applications
🔬 Material Manufacturing & Licensing
Manufacture antiviral functional materials based on this technology and supply them to various product manufacturers. Alternatively, monetize by granting manufacturing licenses for specific industries or applications.
💡 Product Development & OEM Supply
Develop antiviral components (e.g., films, sheets, coatings) applying this technology and supply them as OEM to manufacturers of home appliances, building materials, and automotive parts to expand market reach.
🏢 Spatial Solution Provision
Offer consulting and installation services to apply this technology across entire spaces like offices, commercial facilities, and medical institutions, developing it as a high-value hygiene solution.
Adjacent Application Opportunities
🚗 Automotive & Aerospace
In-Cabin Antiviral Surfaces
Apply this technology to car-sharing interiors, public transport seats, steering wheels, and touch panels to alleviate user hygiene concerns. Combining with antibacterial and deodorizing functions could create new value-added services, potentially impacting a ~$5B global market (AI est.).
👕 Apparel & Textiles
Antiviral Fibers & Apparel
Develop fibers incorporating this technology for medical uniforms, sportswear, and children's clothing. Balancing wash durability and comfort, this could differentiate products in the high-performance apparel market, which sees over 10% annual growth in functional textiles.
📦 Packaging Materials
Antiviral Packaging for Food & Medical Products
Develop antiviral packaging materials to prevent secondary contamination of food and maintain sterility for medical devices. This technology is particularly relevant where enhanced hygiene management is critical across the entire supply chain, a market segment valued at over ~$2B globally (AI est.).
Integration Roadmap — Estimated 18-Month Deployment
Technology Evaluation & Material Selection
Duration: 3 months
Evaluate compatibility with the licensee's existing products and manufacturing processes, then select optimal material substrates and microstructure design parameters.
Prototype Development & Performance Validation
Duration: 6 months
Based on selected materials and design, develop antiviral component prototypes. Conduct antiviral performance evaluations compliant with international standards like ISO to validate practical efficacy.
Mass Production & Market Launch
Duration: 9 months
Establish mass production systems based on validated prototype designs and integrate into existing manufacturing lines. Simultaneously, initiate market promotion and product rollout.
Technical Feasibility
This technology, which involves forming microstructures on material surfaces, could have high compatibility with existing material molding and surface treatment processes. For instance, micro-machining injection molds or combining with coating techniques could enable application to diverse substrates. The technical barrier to adoption is considered relatively low, as it could add new functionality without significant overhaul of existing production equipment.
Success Scenario
Upon adoption, products incorporating this technology could significantly reduce the risk of viral transmission through contact. This could provide consumers with 'peace of mind when touching' medical devices, public facility components, and home appliances, thereby contributing substantially to product differentiation and brand value enhancement. Consequently, it is estimated that this could lead to the opening of new market segments and expansion of existing product market share.
Patent Record
APPLICATION NO.
特願2022-018950
REGISTRATION NO.
7751293
FILING DATE
2022/02/09
GRANT DATE
2025/09/30
EXPIRATION DATE
2042/02/09
PATENT HOLDER
学校法人　関西大学
Examination History
2022年02月22日
手続補正書（自発・内容）
2024年10月09日
出願審査請求書
2025年05月07日
拒絶理由通知書
2025年06月13日
手続補正書（自発・内容）
2025年06月13日
意見書
2025年09月09日
特許査定