Ripeness Checker
The ripeness checker uses a movable pressing shaft and elastic mechanism to determine fruit ripeness by measuring relative displacement, addressing inaccuracies in existing methods and providing a cost-effective, sensor-free solution for home and commercial use.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- 泉 創太
- Filing Date
- 2026-03-04
- Publication Date
- 2026-06-11
AI Technical Summary
Existing methods for determining the ripeness of fruits and vegetables, such as avocados, kiwis, and persimmons, are inaccurate due to environmental factors and require complex, expensive sensor-based systems that are not suitable for home use.
A ripeness checker with a cylindrical portion, a movable pressing shaft, an elastic coil spring, and a slit-protrusion mechanism that measures relative displacement to determine hardness without sensors, allowing for easy and inexpensive ripeness determination.
The device provides accurate ripeness assessment by measuring hardness changes through relative displacement, is simple to use, cost-effective, and suitable for home and commercial use without damaging the fruit.
Smart Images

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