Resistance measuring device

The resistance measuring device with transparent electrodes addresses the trade-off between accuracy and observability in conventional devices by ensuring a uniform electric field and clear cell observation, facilitating precise resistance measurements.

JP2026096349APending Publication Date: 2026-06-15SCREEN HOLDINGS CO LTD
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Patent Information

Application Number
JP2024210106
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2026-06-15

AI Technical Summary

Technical Problem

Conventional resistance measurement devices using gold electrodes face a trade-off between measurement accuracy and cell observability due to non-uniform current density distribution, necessitating areas without electrodes for observation, which compromises the uniformity of the electric field.

Method used

A resistance measuring device with transparent electrodes covering the measurement chamber sides, allowing for improved electric field uniformity and simultaneous cell observation, utilizing a four-terminal method for accurate resistance measurement.

Benefits of technology

The device achieves enhanced measurement accuracy and observability by ensuring a uniform electric field and using transparent electrodes, enabling precise resistance measurements without obstructing cell visibility.

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Abstract

This invention provides a technology that can improve measurement accuracy and observability in resistance measurement of biological samples. [Solution] A resistance measuring device (1) for measuring the electrical resistance of a biological sample. The resistance measuring device (1) comprises a device body, a measuring chamber (10) located inside the device body and capable of storing liquid, a membrane (20) located inside the measuring chamber (10) and holding the biological sample, a transparent first electrode (21) located above the membrane (20) and covering the upper part of the measuring chamber (10), and a transparent observation section located above the first electrode (21).
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