Company Filing History:
Years Active: 2001-2003
Title: Sowmya Krishnan: Innovator in Welding Technology
Introduction
Sowmya Krishnan is a notable inventor based in Sunnyvale, CA, who has made significant contributions to the field of welding technology. With a focus on improving welding processes, she holds 2 patents that enhance the quality and efficiency of welded joints.
Latest Patents
Her latest patents include a "Welding apparatus for forming chromium oxide passivated film at welded portion" and a "Welding method for forming chromium oxide passivated film at welded portion." Both patents describe an improved method for welding and passivation that forms a chromium oxide passivated film over the welded portion during the welding process. In the shielding step, a backshield gas, preferably argon, is flowed around the welding site. During the welding step, an arc gas, preferably argon with approximately 10% hydrogen and less than 1 ppm moisture content, is flowed through the welding head to form a welded joint, for example, by high-speed tungsten-inert gas (TIG) orbital welding. In the passivation step, a process gas, preferably argon with approximately 30-100 ppm of oxygen and less than 1 ppm moisture content, is flowed over the welded portion to create the chromium oxide passivated film. The process gas is purified to maintain its moisture level at less than 1 ppb. A welding and passivation apparatus is also described, featuring a welding system and a gas supply system that delivers the necessary gases with precise timing during the welding and passivation process.
Career Highlights
Sowmya currently works at Ultra Clean Technology Systems and Services Inc., where she continues to innovate in the welding sector. Her work has been instrumental in advancing welding techniques that ensure higher quality and durability in welded products.
Collaborations
She collaborates with various professionals in her field, including her coworker, Tadahiro Ohmi, who brings additional expertise to their projects.
Conclusion
Sowmya Krishnan's contributions to welding technology through her innovative patents demonstrate her commitment to enhancing industrial processes. Her work not only improves the quality of welded joints but also sets a standard for future advancements in the field.