Market Context — Why This Technology, Why Now

Global regulatory pressures, such as carbon pricing mechanisms and net-zero emissions targets, are compelling industries to invest in Carbon Capture and Utilization (CCU) solutions. The increasing demand for sustainable fuels like e-methane, coupled with corporate ESG mandates, creates a critical market opportunity for technologies that can efficiently convert CO2 into valuable products. This patent addresses these trends by offering a cost-effective and high-performance pathway for CO2 valorization.

Key Competitive Advantages
01

Achieves significantly higher methane production efficiency under UV/visible light compared to conventional CO2 reduction technologies, due to its metal oxide semiconductor and zero-valent nickel catalyst design.

02

Reduces catalyst manufacturing costs by using inexpensive nickel as the main component instead of costly noble metals, offering high uniqueness with few prior art references.

03

Provides over 14.5 years of exclusive utilization until 2041, enabling licensees to establish stable business plans and market leadership.

Market Opportunity
Energy and Fuel Industry
$30B–$35B globally (AI est.)
Synthetic methane (e-methane) demand is rapidly increasing as a decarbonized fuel that can leverage existing gas infrastructure. This technology, when combined with renewable energy, could contribute to carbon-neutral fuel supply.
Renewable energy developers Natural gas companies E-fuel producers Industrial gas suppliers
Chemical and Materials Industry
$15B–$20B globally (AI est.)
There is growing demand for chemical recycling that utilizes CO2 as a raw material, and for its conversion into basic chemicals. This technology holds potential for synthesizing not only methane but also other hydrocarbons in the future.
Petrochemical manufacturers Specialty chemical companies Polymer producers Sustainable materials developers
Heavy Industry Emitters (Steel, Cement, etc.)
$3B–$3.5B globally (AI est.)
For industries with high CO2 emissions, such as steel and cement production, CCU technology is crucial for meeting environmental regulations and reducing costs by directly converting emissions into valuable products.
Steel manufacturers Cement producers Industrial furnace operators Large-scale industrial facilities
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a photocatalyst comprising a metal oxide semiconductor supporting zero-valent nickel or a nickel alloy, and a method for producing methane by irradiating this catalyst with UV/visible light in the presence of CO2 and hydrogen. The claims were rigorously examined and strengthened through multiple office actions, indicating a robust and difficult-to-invalidate scope.

Competitive White Space

This patent primarily covers CO2-to-methane photocatalysis. White space exists in developing catalysts for other CO2 conversion products like methanol or syngas, or integrating with alternative energy sources beyond light.

Economic Impact
~$2M/year estimated CO2 emission allowance cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

If a licensee converts 100,000 tons of CO2 to methane annually, assuming an average carbon price of $32/ton (AI est.) under the EU Emissions Trading System, they could avoid approximately $3.2M/year (AI est.) in CO2 emission allowance purchase costs. Factoring in potential revenue from synthetic methane sales, the total economic impact could exceed $2M/year (AI est.). (Calculation: 100,000 tons CO2 reduction × 60% reduction rate × $32/ton carbon price = ~$1.9M (AI est.))

Speed to Market
4× faster than in-house development
Developing a similar photocatalyst technology from scratch in-house, from basic research to catalyst design, performance evaluation, and scale-up, would typically require at least 4 years. This technology has already received patent approval, with its fundamental principles and catalyst composition established. Therefore, licensees could significantly skip the basic research phase and focus on adapting and optimizing the technology for existing reaction facilities, potentially reducing time to market to approximately 1 year.
Competitive Positioning

X: CO2 Conversion Efficiency & Methane Selectivity
Y: Catalyst Economics & Sustainability

Business Models & Applications
⛽ Synthetic Methane Production Licensing
Through licensing this technology, companies could gain the right to produce synthetic methane from CO2 and hydrogen, enabling their entry into the growing e-methane market.
💰 CO2 Emission Credit Trading Partnership
Quantifying CO2 reductions as credits and trading them in emission markets could establish a new revenue stream, balancing environmental impact reduction with economic benefits.
🧪 Chemical Feedstock Conversion Solutions
A business model could involve offering solutions to chemical manufacturers for converting CO2 into basic chemical feedstocks beyond methane, expanding the scope of carbon utilization.
Adjacent Application Opportunities
♻️ Environmental & Recycling
Direct CO2 Utilization from Industrial Flue Gas
This technology could be directly integrated into major CO2 emitters like steel mills or thermal power plants to capture and convert flue gas CO2. This enables on-site carbon recycling, potentially reducing emissions by over 60% and contributing to decarbonization efforts.
🌱 Agriculture & Food
Methane Purification from Biogas
Biogas derived from livestock manure or food waste contains CO2. Applying this technology could convert the CO2 within biogas into additional methane, potentially increasing the fuel gas quality and volume by up to 30% for enhanced energy recovery.
🏭 Manufacturing
Integration with On-Site Hydrogen Production
Combining this photocatalyst with on-site hydrogen production via water electrolysis could create a decentralized energy system. This system would produce clean methane from CO2 and water using renewable electricity, potentially reducing reliance on fossil fuels by 50% for industrial heat and power.
Integration Roadmap — Estimated 27-Month Deployment
Phase 1: Technology Evaluation & Proof of Concept
Duration: 4 months
Evaluate the technology's fundamental data and conduct a feasibility study on its compatibility with the licensee's existing facilities and CO2 emission sources. Lab-scale proof-of-concept may also be explored.
Phase 2: Prototype Development & Optimization
Duration: 9 months
Design and construct an initial prototype catalytic reactor, optimizing catalyst performance to specific CO2 concentration and flow rate conditions of the licensee. Safety evaluations will be conducted concurrently.
Phase 3: Pilot Plant Construction & Commercialization Preparation
Duration: 14 months
Build a small-scale pilot plant using the optimized catalyst and reactor for continuous operation and economic performance evaluation. Establish mass production processes and formulate market entry strategies.
Technical Feasibility
This technology is based on materials proven in existing catalyst manufacturing: generic metal oxide semiconductors and nickel-based catalysts. The patent claims detail the catalyst's composition and structure, suggesting relatively easy integration into existing chemical plants and catalytic reactors. It is estimated that implementation would involve minor modifications or module additions to existing equipment rather than requiring large-scale new installations, thus presenting a low technical barrier.
Success Scenario
Upon adoption, licensees could transform CO2 emissions from waste into a valuable resource. For instance, converting factory-emitted CO2 into methane using this catalytic reactor could allow for its reuse as on-site fuel, potentially reducing fuel costs and achieving near-zero net CO2 emissions. This approach is estimated to significantly lower corporate environmental footprints, enhance ESG ratings, and enable sustainable business operations.
Patent Record
APPLICATION NO.
特願2020-172619
REGISTRATION NO.
7622978
FILING DATE
2020/10/13
GRANT DATE
2025/01/20
EXPIRATION DATE
2040/10/13
PATENT HOLDER
国立大学法人千葉大学
Examination History
2023年06月19日
出願審査請求書
2023年12月26日
拒絶理由通知書
2024年04月22日
意見書
2024年06月07日
拒絶理由通知書
2024年10月07日
手続補正書（自発・内容）
2024年10月07日
意見書
2024年12月13日
特許査定