Location History:
- Waukesha, WI (US) (2003 - 2011)
- Minneapolis, MN (US) (2012)
Company Filing History:
Years Active: 2003-2012
Title: Joseph C. Spang: Innovator in Touch Screen Technology
Introduction
Joseph C. Spang is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of touch screen technology, holding a total of 3 patents. His work focuses on enhancing the functionality and aesthetics of touch screens through innovative designs.
Latest Patents
One of his latest patents is titled "Touch screen having reduced visibility transparent conductor pattern." This invention discloses a transparent touch screen construction that includes a pattern of layer stacks disposed on a substrate. The layer stacks consist of a transparent conductor layer and an intermediate layer positioned between the substrate and the transparent conductor layer. The intermediate layer has a refractive index that is lower than that of both the transparent conductor layer and the substrate. This construction reduces the difference in visible light transmission between the areas of the substrate covered by the stacks and those left exposed. Additionally, methods for reducing the visibility of a patterned transparent conductor in a touch screen are disclosed, involving the use of an intermediate layer pattern.
Another significant patent is "Patterned conductor touch screen having improved optics." This invention provides a touch screen that includes a pattern of transparent conductors as touch sensing elements. The layered construction is designed to reduce the visibility of the transparent conductor pattern. It features a coating covering a substrate, with the transparent conductor pattern disposed on the coating. A filler material covers and contacts both the transparent conductor pattern and the areas of the coating not covered by the pattern, where the index of refraction of the filler material is less than that of both the substrate and the transparent conductor pattern.
Career Highlights
Joseph C. Spang is associated with 3M Innovative Properties Company, where he continues to develop cutting-edge technologies. His work has significantly impacted the touch screen industry, leading to advancements that improve user experience and product design.
Collaborations
Some of his notable coworkers include Brian E. Aufderheide and Jonathan P. Maag, who have collaborated with him on various projects.
Conclusion
Joseph C. Spang is a prominent figure in the realm of touch screen technology, with a focus on reducing visibility and enhancing optical performance. His innovative patents reflect his commitment to advancing technology in this field.