Market Context — Why This Technology, Why Now

Industries worldwide are facing increasing pressure to develop more efficient and sustainable manufacturing processes while simultaneously enhancing product performance. The push for higher energy density in batteries, greater sensitivity in sensors, and more efficient catalysts necessitates advanced material engineering. This technology directly supports these trends by providing a cost-effective and scalable solution for creating high-performance silicon microparticles, enabling companies to meet evolving market demands and regulatory requirements for greener production.

Key Competitive Advantages
01

Achieves Low-Cost, Simple Manufacturing: Utilizes wet etching with hydrofluoric acid and transition metal ions, eliminating expensive vacuum equipment and complex processes, enabling low-cost, high-performance surface modification.

02

Ensures High Production Volume and Scalability: This technology leverages chemical reactions in solution, making the manufacturing process easy to scale up for rapid mass production and flexible market response.

03

Enhances Performance with Unique Surface Structures: Precisely controlling transition metal ion concentration forms specific structures like surface pores or microprotrusions, significantly improving catalytic activity, adsorption, and sensor sensitivity.

Market Opportunity
Energy & Storage
$1.0B–$1.5B globally (AI est.)
Silicon-based anode materials are crucial for increasing the capacity of lithium-ion batteries. Surface modification is required to improve cycle characteristics and safety.
Advanced battery manufacturers EV battery component suppliers Energy storage system developers
Sensors & IoT
$0.5B–$1.0B globally (AI est.)
Increasing surface area and introducing specific functional groups can significantly enhance the sensitivity and selectivity of gas and biosensors, contributing to smaller, higher-performance IoT devices.
High-precision sensor manufacturers IoT device component suppliers Environmental monitoring solution providers
Medical & Bio
$0.5B–$0.8B globally (AI est.)
Surface structure control is critical for cell affinity and controlled drug retention/release in drug delivery systems and diagnostic agents, indicating high demand.
Pharmaceutical delivery system developers Medical diagnostic kit manufacturers Biotech research material suppliers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a wet etching method for silicon microparticles, specifically detailing the use of hydrofluoric acid and transition metal ions within a defined concentration range for two-stage etching. The claims were granted after successful rebuttal against examiner rejections, indicating strong validity and low invalidation risk against three prior art documents.

Competitive White Space

This patent focuses on the wet etching process itself. White space exists in developing novel post-processing surface functionalization, integration into microfluidic systems, or creating composite materials using these modified silicon particles.

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

Compared to conventional high-cost physical/chemical vapor deposition (CVD/ALD), this technology could significantly reduce material and equipment investment costs. Assuming a conventional surface processing cost of ~$6.50/g (AI est.) and annual production of 100kg (100,000g) of silicon microparticles, a 20% cost reduction with this technology could yield an annual saving of ~$130K (AI est.).

Speed to Market
6× faster than in-house development
This technology is based on a wet process using simple operations and inexpensive materials, making it relatively easy to integrate into existing chemical plant facilities. The specific procedures for two-stage etching and the concentration range of transition metal ions described in the patent are already established algorithms, allowing licensees to significantly shorten R&D periods and achieve early market entry.
Competitive Positioning

X: Process Simplicity
Y: Surface Structure Control & Precision

Business Models & Applications
🤝 License Provision
Granting patent licenses for this manufacturing method allows licensees to integrate the technology into their products, innovating production processes and adding significant value.
💡 Joint Development
Establishing joint R&D partnerships for specific applications or product development can expand the technology's scope and jointly open new markets.
🎓 Technical Consulting
Provide technical expertise, including optimal process design, material selection, and quality control, to companies considering this technology, supporting smooth integration and commercialization.
Adjacent Application Opportunities
🔋 エネルギー
Next-Generation Battery Anode Materials
Silicon microparticles are key anode materials for next-generation lithium-ion batteries. This technology, by forming surface pores and microprotrusions, could increase electrolyte contact area, potentially improving charge/discharge characteristics and cycle life for high-capacity batteries by 15-20%.
🔬 医療・診断
High-Sensitivity Biosensors
Silicon microparticles with large surface areas are ideal carriers for immobilizing biomolecules like proteins and DNA. Controlling surface structures with this technology could significantly boost biosensor detection sensitivity and selectivity by up to 30%, enabling applications in early diagnosis and precision medicine.
🧪 環境
High-Performance Catalysts & Adsorbents
Silicon microparticles with fine surface structures hold high potential as catalyst supports and environmental pollutant adsorbents. This technology could enhance reaction efficiency and increase adsorption capacity by 25%, offering new solutions in environmental technologies like exhaust gas treatment and water purification.
Integration Roadmap — Estimated 18-Month Deployment
Proof of Concept & Technical Evaluation
Duration: 3 months
Evaluate the basic principles of this technology and its compatibility with the licensee's existing materials and processes. Verify the expected performance improvement potential through small-scale prototyping.
Pilot Scale Validation & Optimization
Duration: 6 months
Apply this technology at a pilot scale, close to a real manufacturing environment, to optimize process conditions and establish quality control methods. Explore specific product application possibilities.
Mass Production Process Design & Implementation
Duration: 9 months
Based on the optimized process, design for mass production line integration and conduct final equipment adjustments and testing. This establishes a stable production system for high-performance silicon microparticles.
Technical Feasibility
The wet etching process using hydrofluoric acid and transition metal ions, as described in the patent claims, can be implemented with standard chemical reaction equipment, making integration into existing wet process lines relatively straightforward. Precise surface structure formation is achievable through controlled ion concentration within specified ranges, offering technical feasibility to leverage existing manufacturing infrastructure while minimizing new large-scale capital investment.
Success Scenario
Implementing this technology could reduce current surface processing material costs by ~20%. This would lower manufacturing costs for high-performance silicon microparticles, enabling competitive product positioning. Furthermore, enhanced product performance due to the formed surface structures could lead to market differentiation and new customer acquisition, potentially increasing annual sales by over 10%.
Patent Record
APPLICATION NO.
特願2022-006070
REGISTRATION NO.
7778310
FILING DATE
2022/01/19
GRANT DATE
2025/11/21
EXPIRATION DATE
2042/01/19
PATENT HOLDER
学校法人東京電機大学
Examination History
2024年10月21日
出願審査請求書
2025年06月17日
拒絶理由通知書
2025年07月30日
手続補正書（自発・内容）
2025年07月30日
意見書
2025年11月11日
特許査定