Company Filing History:
Years Active: 2000-2006
Title: Innovations of Shuichi Fujii
Introduction
Shuichi Fujii is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of electrical engineering, particularly in the area of motor control technologies. With a total of 2 patents, his work has had a meaningful impact on the industry.
Latest Patents
One of his latest patents is a method of measuring the motor constant for induction motors. This innovative method provides a way to measure a motor constant in a vector control apparatus for an induction motor. The process involves setting a voltage output phase at a previously determined arbitrary phase. Before applying a current, a current command is fed to operate the vector control apparatus with a proportional-plus-integral controller. After a predetermined conduction time, the gain of the controller is set to zero to maintain a constant integrated value, thereby fixing a voltage command value. In this state, both a current command value and a detected current value are measured at two levels of current, allowing for the derivation of a primary resistance value from the slope.
Career Highlights
Shuichi Fujii is currently employed at Kabushiki Kaisha Yaskawa Denki, a company renowned for its advancements in automation and control technologies. His work at Yaskawa Denki has allowed him to further develop his expertise in motor control systems.
Collaborations
He has collaborated with notable coworkers such as Ryuichi Oguro and Masanobu Inazumi, contributing to various projects that enhance the capabilities of motor control technologies.
Conclusion
Shuichi Fujii's contributions to the field of electrical engineering, particularly through his innovative patents, demonstrate his commitment to advancing technology in motor control systems. His work continues to influence the industry positively.