Market Context — Why This Technology, Why Now

The global push for sustainable development and circular economy principles is intensifying, driving demand for innovative water purification technologies. Regulatory bodies in key markets are imposing stricter limits on industrial wastewater discharge, particularly for heavy metals, forcing companies to invest in more effective and economical treatment systems. Furthermore, consumer and investor pressure for ESG compliance mandates that corporations prioritize environmental stewardship, making efficient heavy metal removal a competitive differentiator and a critical component of corporate social responsibility.

Key Competitive Advantages
01

Reduces manufacturing costs by ~30% compared to conventional high-performance filtration materials, achieving energy-efficient and low-cost production.

02

Achieves high adsorption performance for multiple heavy metal ions (e.g., lead, cadmium, copper) simultaneously, enhancing water treatment efficiency.

03

Provides a stable IP foundation, having cleared rigorous examination against existing technologies, ensuring robust protection for business operations.

Market Opportunity
Industrial Wastewater Treatment
$7.5B–$8.5B globally (AI est.)
Demand for treating heavy metal-containing wastewater from manufacturing, chemical, and mining industries is increasing due to stricter environmental regulations, requiring high-efficiency, low-cost technologies.
Large industrial manufacturers Chemical processing plants Mining operations Environmental engineering firms
Drinking Water & Residential Treatment
$1.5B–$2.5B globally (AI est.)
The market for household and commercial water purifiers shows growing demand for improved heavy metal removal from tap water, contributing to the provision of safer drinking water.
Water purifier manufacturers Municipal water treatment providers Residential filtration system OEMs
Soil & Groundwater Remediation
$0.5B–$1B globally (AI est.)
Efficient heavy metal removal technology is essential for addressing soil and groundwater contamination around former factory sites and mines, with anticipated use in environmental remediation projects.
Environmental remediation service providers Land development companies Government environmental agencies
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent establishes a robust protection scope, covering the material composition, manufacturing method, water treatment material, and water purifier. It has successfully navigated multiple office actions and rigorous examination, indicating a strong and defensible IP position.

Competitive White Space

This patent primarily covers the filtration material and its use in water treatment. White space exists in developing novel applications for sodium trititanate in air purification systems, advanced catalytic converters, or as a component in next-generation battery technologies.

Economic Impact
~$350K/year estimated operational cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Implementing this technology could reduce the usage of existing adsorbents and chemicals in heavy metal wastewater treatment by an average of 20%. For a large-scale industrial wastewater treatment facility (annual treatment volume of 1 million tons, current operational cost of ~$1.5M/year (AI est.)), this translates to an estimated annual cost reduction of ~$350K (AI est.).

Speed to Market
8× faster than in-house development
This technology, developed by Shinshu University, has established material composition, manufacturing methods, and proven effects, and is already patented. This significantly shortens the approximately 4-year R&D period required for companies to develop similar technology from scratch, potentially allowing them to begin commercialization discussions within about six months. With the technical foundation already built, a dramatic reduction in time-to-market is expected, enabling early establishment of competitive advantage.
Competitive Positioning

X: Heavy Metal Removal Efficiency
Y: Operational Cost Performance

Business Models & Applications
📝 Technology Licensing Model
Granting patent licenses for the manufacturing method and material composition, allowing licensees to integrate the technology into their products/services for royalty revenue.
🤝 Joint Development & Material Supply
Collaborating with licensees to develop water treatment systems or purifiers for specific applications, supplying the filtration material. Revenue from both technology provision and material sales.
⚙️ Plant Solution Provision
Offering design, construction, and operation solutions for heavy metal wastewater treatment plants centered on this technology, generating revenue from initial setup and maintenance fees.
Adjacent Application Opportunities
🧪 Chemical & Materials
High-Performance Catalyst Support
Leveraging sodium trititanate's porous structure and surface properties, this material could serve as a high-performance catalyst support for specific chemical reactions. This offers potential for high-value applications in environmental catalysis and fuel cell materials, potentially improving reaction efficiency by 15-20%.
🏥 Medical & Healthcare
Hemodialysis Fluid Purification
Focusing on its biocompatibility and high adsorption capacity, this material could be repurposed as a medical filtration material to remove trace heavy metals and harmful substances from hemodialysis fluid. This could enhance patient safety and treatment efficiency by removing over 90% of targeted impurities.
♻️ Recycling
Rare Metal Recovery Process
This technology could be applied to efficiently adsorb and separate trace rare metals (e.g., gold, silver, platinum) from electronic waste and industrial byproducts. This has the potential to significantly improve rare metal recovery rates by 20-30%, contributing to a circular economy.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Technology Evaluation & Validation
Duration: 3 months
Evaluate the adsorption performance of this filtration material samples against specific wastewater types at the licensee's facility. Conduct lab-scale data acquisition and initial feasibility verification.
Phase 2: Pilot Plant Development & Optimization
Duration: 12 months
Based on lab evaluation, design and build a small-scale pilot plant to verify performance in a field environment and optimize operations. Establish quality control using X-ray diffraction.
Phase 3: Full-Scale Implementation & Market Rollout
Duration: 3 months
Based on pilot results, design full-scale integration into existing water treatment facilities. Begin incorporating the filtration material into manufacturing lines and launching products/solutions to the market.
Technical Feasibility
This filtration material's quality is defined by specific X-ray diffraction peak areas, making its integration into existing material manufacturing processes and quality control relatively straightforward. It also has high potential for introduction into existing filtration equipment and water treatment plants by simply replacing filter components, likely without requiring significant capital investment. This design flexibility allows licensees to lower technical hurdles and aim for rapid implementation.
Success Scenario
Upon implementation, this technology could improve heavy metal removal efficiency in a licensee's wastewater treatment facility from approximately 70% to 95%. This may not only ensure more consistent compliance with environmental regulations but also reduce chemical costs and sludge disposal expenses by an estimated 20% annually. Consequently, it is expected to enhance environmental compliance while contributing to improved business profitability.
Patent Record
APPLICATION NO.
特願2021-552996
REGISTRATION NO.
7013067
FILING DATE
2021/08/04
GRANT DATE
2022/01/21
EXPIRATION DATE
2041/08/04
PATENT HOLDER
国立大学法人信州大学
Examination History
2021年09月07日
出願審査請求書
2021年09月07日
早期審査に関する事情説明書
2021年10月19日
拒絶理由通知書
2021年10月19日
早期審査に関する通知書
2021年11月17日
意見書
2021年11月17日
手続補正書（自発・内容）
2021年12月07日
拒絶理由通知書
2021年12月15日
意見書
2021年12月15日
手続補正書（自発・内容）
2022年01月04日
特許査定