Company Filing History:
16 out of 36,653 
2 out of 19,733 
1 out of 1,600 Years Active: 2014-2020
Title: Yuki Jojima: Innovator in Electric Vehicle Technology
Introduction
Yuki Jojima is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of electric vehicle technology, holding a total of 17 patents. His innovative work focuses on enhancing the efficiency and functionality of electric vehicles through advanced diagnostic devices and control methods.
Latest Patents
One of Jojima's latest patents is a diagnostic device for a current sensor. This device includes an AC power calculation unit, a DC power calculation unit, and a determination unit. The AC power calculation unit calculates the AC power outputted from the inverter based on measurements from the current sensor. The DC power calculation unit calculates the DC power from a power supply to the inverter. The determination unit outputs a signal to notify users of any abnormalities in the current sensor when the difference between the calculated AC and DC power exceeds a predetermined threshold.
Another notable patent is related to an electric vehicle and its control method. This electric vehicle features a motor for traveling, a transmission connected to the motor, a battery, and an inverter that converts direct-current power from the battery into alternating-current power for the motor. Additionally, it includes a capacitor and a controller that changes the gear stage of the transmission based on specific conditions regarding the motor's rotation speed and output.
Career Highlights
Jojima has worked with renowned companies such as Toyota Motor Corporation and Denso Corporation. His experience in these leading automotive firms has allowed him to develop and refine his innovative ideas in electric vehicle technology.
Collaborations
Some of Jojima's notable coworkers include Yoshiaki Kawakami and Eizo Takahashi. Their collaboration has contributed to the advancement of electric vehicle technologies and innovations.
Conclusion
Yuki Jojima's contributions to electric vehicle technology through his patents and work with leading companies highlight his role as a key innovator in the industry. His inventions continue to pave the way for advancements in electric vehicle efficiency and functionality.