Kazushige Yokota

Title: Kazushige Yokota: Innovator in Overcurrent Detection and Engine Control

Introduction

Kazushige Yokota is a notable inventor based in Zama, Japan. He has made significant contributions to the field of electrical engineering and automotive technology. With a total of 3 patents to his name, Yokota's work focuses on enhancing the efficiency and reliability of electronic systems.

Latest Patents

Yokota's latest patents include an innovative overcurrent detection method and detection circuit. This invention is designed for a load-driving apparatus that utilizes a Field Effect Transistor (FET) positioned between a battery and a load. The overcurrent detection circuit features a function generation circuit that includes a voltage divider circuit and a comparator. The voltage divider circuit consists of a pair of resistors connected to the drain of the FET, along with a Zener diode connected to a junction point in parallel with the second resistor. The comparator's role is to compare a reference voltage at this junction point with a variable voltage of the FET. It outputs an overcurrent detection signal when the variable voltage falls below the reference voltage. This design ensures that the system does not erroneously signal an overcurrent even in the presence of noise, as long as the battery voltage remains stable.

Another significant patent by Yokota is a controller and control method for engine ignition timing. This invention calculates a target torque as a proportion PI relative to the torque generated by an engine at a basic ignition timing. By determining an ignition timing correction amount based on this proportion, the method allows for rapid and accurate adjustments to the ignition timing, effectively responding to torque-down requests.

Career Highlights

Kazushige Yokota is currently employed at Nissan Motor Company Limited, where he applies his expertise in developing advanced automotive technologies. His work has contributed to the improvement of vehicle performance and safety.

Collaborations

Yokota has collaborated with esteemed colleagues such as Hatsuo Nagaishi and Yoshiaki Yoshioka. Their combined efforts have led to innovative solutions in the automotive sector.

Conclusion

Kazushige Yokota's contributions to overcurrent detection and engine control exemplify his commitment to innovation in technology. His patents reflect a deep understanding of electrical systems and their applications in the automotive industry.