Company Filing History:
4 out of 25,901 
1 out of 532 
Years Active: 2017-2020
Title: The Innovative Mind of Liqun Na
Introduction
Liqun Na, an accomplished inventor based in Northville, MI, has made significant contributions to the field of automotive technology. With a total of four patents to his name, Na has a keen focus on enhancing vehicle performance and sound quality through innovative methods and technologies.
Latest Patents
Two of Na's latest patents showcase his inventive prowess. The first patent, titled "Motor Operating Region Based Random Pulse Width Modulation," outlines a vehicle system that includes a traction motor and an inverter. The patented controller optimizes the operation of switches within specific frequency sets, ensuring that noise side bands remain outside the resonance frequency zones of the traction motor.
The second patent, "Active Sound Desensitization to Tonal Noise in a Vehicle," introduces a groundbreaking approach to managing tonal noise in vehicles. This invention details a method wherein an electric motor, microphone, and speakers work in conjunction with an active sound desensitizer. The desensitizer randomizes the speaker channels based on diverse sound profiles, creating a tailored sound adjustment experience for reducing unwanted noise.
Career Highlights
Liqun Na has garnered experience through his work at prominent institutions such as Ford Global Technologies and the University of Cincinnati. His tenure at these organizations has allowed him to develop cutting-edge technologies that benefit the automotive industry.
Collaborations
Throughout his career, Na has collaborated with distinguished professionals such as Ming-Ran Lee and Ming-te Cheng. Their collective expertise has undoubtedly played a role in the advancement of his innovation-driven projects.
Conclusion
Through his inventive spirit and technical knowledge, Liqun Na exemplifies the role of an innovator dedicated to improving automotive technology. His notable patents contribute a unique perspective on noise management and motor operation, highlighting the ongoing evolution of vehicle design and functionality.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.