Junpei Kakehi

Title: Junpei Kakehi: Automotive Inventions at Toyota

Introduction

Junpei Kakehi is an inventor based in Toyota, Japan, whose patent work focuses on vehicle systems and internal combustion engine control. He is associated with Toyota Jidosha Kabushiki Kaisha, commonly known as Toyota Motor Corporation. His listed portfolio includes 2 patents.

Latest Patents

Kakehi’s listed patents address engine starting and the detection of abnormal brake-assist vacuum conditions.

“Negative pressure abnormality detection apparatus and control apparatus for internal combustion engine” describes a system that monitors negative pressure generated by an engine and used to assist a driver’s braking. During an engine-stopped state, the apparatus assesses whether the pressure sensor is abnormal by checking whether its reading falls outside a normal range as the brake pedal is operated to reduce negative pressure.

“Control device of vehicle and control method of vehicle” concerns a vehicle engine-starting system. It describes gears, an actuator, a motor, and a controller that adjusts the timing of engine cranking based on the driver’s operating state and the vehicle’s condition when a startup request is received.

Career Highlights

Kakehi’s patent work reflects an emphasis on practical automotive engineering, including brake-assist monitoring and coordinated engine-start control. Both inventions describe ways to use sensor information and vehicle operating conditions to support system operation.

Collaborations

Kakehi’s listed coworkers include Hirokazu Kato and Fumichika Shimose. The provided information identifies Toyota Jidosha Kabushiki Kaisha as his company but does not specify the coworkers’ roles in the patents.

Conclusion

Junpei Kakehi’s listed inventions address two important vehicle functions: monitoring brake-assist vacuum and managing engine startup.