Company Filing History:
Years Active: 2014-2015
Title: Innovations of Shuichi Tachihara
Introduction
Shuichi Tachihara is a notable inventor based in Hitachinaka, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of control methods for induction motors and drive devices for railway vehicles. With a total of 3 patents to his name, Tachihara continues to push the boundaries of technology.
Latest Patents
One of his latest patents is a control method for induction motors. This innovation aims to cause the residual magnetic flux in an induction motor to decay quickly without excessive current flow. The control apparatus operates by causing an inverter to output zero voltage to the induction motor for a predetermined time before deactivating the inverter's operation. Another significant patent is for a drive device for railway vehicles. This control device manages an inverter based on the direct-current link voltage between the terminals of a filter capacitor. It ensures that the direct-current voltage applied during regeneration is the sum of the voltage from power storage equipment and the overhead wire voltage, allowing for effective separation and control of these voltages.
Career Highlights
Shuichi Tachihara is currently employed at Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to collaborate with other talented engineers and inventors, further enhancing his contributions to the field.
Collaborations
Some of his notable coworkers include Motomi Shimada and Daijiro Araki. Their collaborative efforts have led to advancements in various technological projects within the company.
Conclusion
Shuichi Tachihara's innovative work in the field of electrical engineering exemplifies the impact of dedicated inventors on modern technology. His patents reflect a commitment to improving efficiency and functionality in electrical systems.