This inventor holds 4 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha. Active years: 2002-2020.
Location History:
- Tokyo, JP (2002 - 2015)
- Chiyoda-ku, JP (2012 - 2020)
Company Filing History:
3 out of 16,571 
1 out of 21,351 
Years Active: 2002-2020
Title: The Innovations of Hideki Sugita
Introduction
Hideki Sugita is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electric motor technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and safety of electric motor drive devices and automotive power supply systems.
Latest Patents
One of Sugita's latest patents is an electric motor drive device. This device includes a smoothing capacitor and an inverter, along with an overvoltage protection unit designed to safeguard the smoothing capacitor. The overvoltage protection unit features a discharge circuit with a discharge resistor and an IGBT connected in series. Additionally, it incorporates a first determination circuit that detects when the smoothing capacitor voltage exceeds a predetermined threshold, activating the IGBT to prevent damage. Furthermore, the phase short-circuit control unit is integrated into the control device for the inverter, ensuring safe operation by monitoring voltage levels and performing necessary controls.
Another notable patent is for an automotive electric power supply system. In this system, the main electric power source connects to a lower-voltage side of a DC/DC converter via a first switch. An electrical double-layer capacitor and a regulator circuit are linked to the higher-voltage side of the converter. The design includes permanent magnets on the rotor to create a magnetic field opposing the excitation from a field coil. A power supply control circuit manages the first switch's operation, ensuring it remains open when the engine is off and connects after the regulator circuit activates, allowing the alternator to precharge the capacitor.
Career Highlights
Throughout his career, Hideki Sugita has worked with notable companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in electric motor technologies and power supply systems.
Collaborations
Sugita has collaborated with talented individuals in the field, including Masaya Inoue and Takahiro Urakabe. Their joint efforts have further advanced the innovations in electric motor technology.
Conclusion
Hideki Sugita's contributions to electric motor technology and automotive power systems demonstrate his commitment to innovation and safety. His patents reflect a deep understanding of electrical engineering and a dedication to improving the efficiency of modern technologies.