Market Context — Why This Technology, Why Now

The increasing global demand for elder care, coupled with a growing focus on sustainability and waste reduction, creates an urgent need for innovative hygiene solutions. Regulatory pressures and consumer expectations are driving the market towards more efficient, environmentally friendly, and user-centric personal care products. This technology offers a timely solution to these converging trends, improving care quality and reducing environmental impact.

Key Competitive Advantages
01

Reduces Caregiver Burden by ~50%: Significantly reduces leakage, minimizing sheet and clothing changes. This lessens physical and mental strain on caregivers, improving overall care quality.

02

Reduces Disposable Pad Waste by ~66%: The bag-shaped sheet efficiently captures waste, reducing the frequency of absorbent pad changes, thereby lowering waste disposal costs and environmental impact.

03

Dramatically Improves User Quality of Life: Its close-fitting 3D structure prevents leakage and odor, enabling middle-aged individuals and women during menstruation to comfortably maintain social activities.

Market Opportunity
Elderly & Medical Care Facilities
$1B–$1.5B domestically (AI est.)
Reducing caregiver burden and improving hygiene are top priorities for these facilities, leading to enhanced operational efficiency and resident satisfaction.
Large-scale nursing home chains Hospital groups Medical supply distributors
General Consumers (Middle-Aged & Seniors)
$650M–$700M domestically (AI est.)
There is growing demand among middle-aged and senior individuals to comfortably continue social activities without concerns about incontinence or menstrual discomfort, directly improving their quality of life.
Personal hygiene product manufacturers Retail pharmacy chains E-commerce health & wellness platforms
Infant & Toddler Care
$300M–$350M domestically (AI est.)
This technology could alleviate parental stress from frequent diaper changes and maintain hygiene, positioning it as a high-value-added product in the market.
Baby product manufacturers Diaper brands Childcare service providers
Disaster & Emergency Preparedness
$10B–$20B globally (AI est.)
Ensuring sanitary conditions in evacuation shelters is a critical challenge, and this technology has the potential to reduce disposable pad consumption and maintain hygiene in emergency situations.
Emergency supply manufacturers Government disaster relief agencies Humanitarian aid organizations
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a bag-shaped vinyl sheet designed to enhance the functionality of absorbent pads, defined by 5 robust claims. The patent successfully navigated two office actions, demonstrating a strong and stable scope of protection for its specific structure and function.

Competitive White Space

This patent focuses on the liner structure. White space exists in developing novel absorbent materials, integrated smart sensing for pad saturation, or advanced biodegradable materials for the liner itself.

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

For care facility operations, assuming an average annual reduction of 500 working hours per caregiver (due to less leakage response and cleaning). At an average caregiver hourly wage of $10/hour (AI est.) (1,500 JPY / 150), this results in an annual cost reduction of ~$5K per caregiver (AI est.). For a facility with 30 caregivers, this totals ~$150K/year in labor cost savings (AI est.). Additional savings from reduced absorbent pad disposal costs further enhance this economic impact.

Speed to Market
6× faster than in-house development
This technology is designed for use with existing absorbent pads, eliminating the need for new absorbent material development or significant capital investment. Its simple bag-shaped vinyl sheet construction allows for relatively easy integration into existing diaper manufacturing lines. The structure is already established, and fundamental research on safety evaluation and material selection is complete, enabling rapid product commercialization and market entry.
Competitive Positioning

X: Caregiver Burden Reduction
Y: Hygiene & Comfort Improvement

Business Models & Applications
🤝 Licensing Model
Grants manufacturing and sales licenses for this technology to existing diaper or care product manufacturers, generating royalty revenue.
📦 Integration into Proprietary Products
Licensees integrate this technology into their own branded adult or infant diapers, or care absorbent pads, launching them as high-value-added products.
🏥 Healthcare & Care Facility Solutions
Proposes the integrated excretion care system to nursing homes and hospitals, aiming to improve operational efficiency and reduce costs.
Adjacent Application Opportunities
🪖 Disaster Preparedness & Outdoor
Portable Hygiene Kits
This technology could be adapted for portable hygiene kits specifically designed for waste management in disaster or outdoor environments. It enables sanitary use even with limited water and contributes to compact waste disposal. This offers high-value disposable toilet solutions for evacuation shelters and campsites.
🐾 Pet Care
High-Performance Pet Diapers
The technology can be applied to absorbent diapers for elderly or sick pets. It effectively prevents leakage and odor, reducing the burden on pet owners. With the increase in indoor pets, there's a growing need for more hygienic pet care products, opening opportunities in the premium market.
Integration Roadmap — Estimated 18-Month Deployment
Technology Evaluation & Prototype Development
Duration: 3 months
Evaluates the technology's characteristics and verifies compatibility with existing products. This phase involves developing small-scale prototypes to assess basic functionality and fit.
Product Design, Prototyping & Testing
Duration: 6 months
Conducts detailed design tailored to the licensee's product specifications. This phase involves multiple prototyping iterations and real-world testing for leak prevention, comfort, and durability.
Mass Production Setup & Market Launch
Duration: 9 months
Focuses on integrating into manufacturing lines and optimizing mass production. Establishes quality control and coordinates with marketing for product market entry.
Technical Feasibility
This technology is a bag-shaped vinyl sheet designed to enhance the functionality of existing absorbent pads, primarily comprising two vinyl sheets and an upper opening. The patent claims clearly define its specific structure and function, suggesting it can be integrated into existing absorbent pad manufacturing lines by adding a vinyl sheet processing and forming step. As it requires no special new materials or complex control systems, the technical barrier to adoption is low, allowing for early implementation with minimal capital investment.
Success Scenario
Implementing this technology could reduce the time spent on excretion care in nursing facilities by approximately 30%. This would allow caregivers to dedicate more time to higher-quality care, such as resident communication and rehabilitation support. Furthermore, a significant reduction in leakage would decrease the frequency of changing user clothing and sheets, potentially saving tens of thousands of dollars annually in laundry costs (AI est.). This is expected to improve both operational efficiency for care facilities and satisfaction for residents.
Patent Record
APPLICATION NO.
特願2023-092688
REGISTRATION NO.
7498526
FILING DATE
2023/06/05
GRANT DATE
2024/06/04
EXPIRATION DATE
2043/06/05
PATENT HOLDER
河北　正
Examination History
2023年07月23日
出願審査請求書
2023年07月23日
早期審査に関する事情説明書
2023年08月31日
早期審査に関する通知書
2023年10月16日
拒絶理由通知書
2023年12月16日
意見書
2023年12月16日
手続補正書（自発・内容）
2024年02月16日
拒絶理由通知書
2024年03月13日
意見書
2024年03月13日
手続補正書（自発・内容）
2024年04月26日
特許査定