Yoshitoshi Watanabe

Title: Innovations of Yoshitoshi Watanabe

Introduction

Yoshitoshi Watanabe is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of electrical engineering, particularly in power supply systems. With a total of 7 patents to his name, Watanabe's work has had a considerable impact on modern technology.

Latest Patents

One of Watanabe's latest patents is an external power supply system. This system includes an electrical storage device, a motor, and an inverter that drives the motor using electric power from the storage device. A control device manages the inverter, which consists of first and second switching elements connected in series between positive and negative electrode power supply lines. The connection-node of these switching elements is linked to a corresponding stator coil. The control device inputs signals to the inverter to ensure that the voltage at the neutral point remains at a predetermined value. Additionally, the control device compensates for signals during the dead time period based on the current input from the connection-node to the stator coil or output from the stator coil to the connection-node while the engine is in operation.

Another notable patent is related to a power controller and a vehicle equipped with this controller. In this invention, an ECU detects the effective value and phase of a voltage from a commercial power supply using a voltage sensor. The ECU generates a command current that is in-phase with the voltage of the commercial power supply, based on the detected effective value and phase, as well as a charge/discharge power command value for a power storage device. The ECU then controls the zero-phase voltage of inverters based on the generated command current.

Career Highlights

Watanabe has worked with notable companies such as Toyota Motor Corporation and Toyota Central R&D Labs. His experience in these organizations has allowed him to develop innovative technologies that enhance vehicle performance and efficiency.

Collaborations

Throughout his career, Watanabe has collaborated with esteemed colleagues, including Katsuhiro Asano and Takaji Umeno. These partnerships have contributed to the advancement of his inventions and the successful implementation of his ideas.

Conclusion

Yoshitoshi Watanabe's contributions to electrical engineering and power supply systems are noteworthy. His innovative patents and collaborations with leading companies and professionals highlight his significant role in advancing technology. His work continues to influence the industry and