This inventor holds 3 USPTO granted patents. Top assignee: The Bergquist Company. Active years: 2002-2003.
Company Filing History:
Years Active: 2002-2003
Title: Innovations by Mary L Randall
Introduction
Mary L Randall is an accomplished inventor based in Buffalo, MN (US). She has made significant contributions to the field of touch screen technology, holding a total of three patents. Her innovative designs have enhanced the functionality and accuracy of touch screen systems.
Latest Patents
One of her latest patents is for a touch screen dielectric separator. This invention involves a touch screen assembly designed for contact input systems. The assembly includes a base substrate with an electrically resistive coating. An array of reticulated spaced raised projections is formed on the inner surface, consisting of a developed and cured photoresist. The process involves applying the photoresist as an adherent layer with a release-film backing onto a heated substrate. A laminate is then formed by passing the photoresist layer beneath a heated pneumatically actuated nip roll, which causes the layer to flow and form a uniform thickness. The laminate is subsequently masked, exposed to radiation, and developed to create a reticulated pattern of raised projections. A flexible plastic film with a resistive coating is then mounted on the substrate in superimposed relationship to the raised projections.
Another notable patent by Randall is for an improved electrode arrangement for touch screen panels. This design features conductive segments forming edge arrays and elongated buses that deliver input signals. The segments and buses are arranged in a stacked superimposed relationship, with their axes angularly disposed at the cross-over points. This configuration eliminates impedance that could adversely affect the accuracy of the touch screen output. Each cross-over point is strategically located along a solid portion of the conductive segments.
Career Highlights
Mary L Randall is currently associated with The Bergquist Company, where she continues to innovate in the field of touch screen technology. Her work has been instrumental in advancing the capabilities of touch screen systems, making them more efficient and reliable.
Conclusion
Mary L Randall's contributions to touch screen technology through her patents demonstrate her expertise and commitment to innovation. Her work not only enhances user experience but also sets new standards in the industry.