Company Filing History:
Years Active: 2006-2007
Title: Tomohiro Nakagawa: Innovator in Electric Machine Technology
Introduction
Tomohiro Nakagawa is a prominent inventor based in Numazu, Japan. He has made significant contributions to the field of electric machines, holding a total of 2 patents. His work focuses on enhancing the efficiency and control of electric generation devices.
Latest Patents
One of Nakagawa's latest patents is an output control device of a generation device. This device includes a rectifier circuit that rectifies the output of an AC generator and applies it across a battery. It features an inverter circuit positioned between the battery and the generator, along with inverter control means that convert the battery voltage into an AC control voltage. This innovation ensures that the phase of the AC control voltage does not lag behind the maximum output current phase, preventing a reduction in generator output.
Another notable patent is a rotor position determination device for rotating electric machines. This device determines the position of a rotor relative to m-phase armature coils. It includes transient current energizing means that apply a DC voltage to each armature coil, allowing for the detection of transient currents. This information is crucial for accurately determining the rotor's position, enhancing the performance of rotating electric machines.
Career Highlights
Tomohiro Nakagawa is associated with Kokusan Denki Co., Ltd., where he continues to innovate in the field of electric machines. His work has been instrumental in advancing technologies that improve the efficiency and reliability of electric generation systems.
Collaborations
Nakagawa has collaborated with notable colleagues, including Masakatsu Takahashi and Yutaka Inaba. Their combined expertise has contributed to the development of cutting-edge technologies in the electric machine sector.
Conclusion
Tomohiro Nakagawa's contributions to electric machine technology through his patents and collaborations highlight his role as an influential inventor. His innovations continue to shape the future of electric generation devices, ensuring greater efficiency and performance.