Company Filing History:
3 out of 135 
2 out of 516 
Years Active: 2022-2025
Title: Innovations of Inventor Haiqing Li
Introduction
Haiqing Li is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of power conditioning and conversion technologies. With a total of 5 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is a power conditioning subsystem. This subsystem includes an inverter circuit designed to convert direct current (DC) power from a storage battery into alternating current (AC) power. It features a command value acquiring portion that obtains a command value from a higher-level apparatus for charging or discharging the storage battery. Additionally, it has a DC voltage acquiring portion that measures the DC voltage on the storage battery side, along with a limiter processing portion that sets upper and lower limits for the command value based on the acquired DC voltage.
Another significant patent is a power conversion device and method for diagnosing failures of switching devices. This device incorporates a three-level TNPP circuit and includes a voltage detection unit. It also features a test pulse output unit that sends a test pulse to an inner switching device when the detected voltages exceed a predetermined threshold. A determination unit assesses whether an outer switching device has a short circuit failure based on voltage drops detected by the voltage detection unit.
Career Highlights
Haiqing Li has worked with prominent companies such as TMEIC Corporation and Toshiba Mitsubishi-Electric Industrial Systems Corporation. His experience in these organizations has allowed him to develop and refine his innovative technologies.
Collaborations
Throughout his career, Haiqing Li has collaborated with various professionals, including Kouki Morisaki. These collaborations have contributed to the advancement of his projects and innovations.
Conclusion
Haiqing Li's contributions to power conditioning and conversion technologies demonstrate his expertise and innovative spirit. His patents reflect a commitment to advancing technology in meaningful ways.