This inventor holds 2 USPTO granted patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Denso Ten Limited. Active years: 2021-2022.
Location History:
- Kobe, JP (2021)
- Toyota, JP (2022)
Company Filing History:
2 out of 38,774 
1 out of 299 
Years Active: 2021-2022
Title: Kazuto Roppongi: Innovator in Electric and Hybrid Vehicle Technologies
Introduction
Kazuto Roppongi is a notable inventor based in Kobe, Japan. He has made significant contributions to the field of electric and hybrid vehicle technologies. With a total of 2 patents, Roppongi's work focuses on enhancing the efficiency and performance of electric powered vehicles.
Latest Patents
Roppongi's latest patents include an innovative electric powered vehicle and a control method for such vehicles. The first patent describes an Electronic Control Unit (ECU) that switches to a high-voltage (HV) mode when the state of charge (SOC) of the battery decreases to a lower limit during electric vehicle (EV) mode. The ECU calculates an evaluation value indicating the deterioration of a secondary battery due to non-uniform salt concentration. It executes high-rate deterioration inhibiting control to increase the SOC when the battery is evaluated as deteriorating. The second patent involves a hybrid vehicle that includes an engine, a motor generator, a battery, and an ECU. This ECU calculates the degree of battery deterioration and executes control to raise the target SOC when the battery is evaluated as deteriorated.
Career Highlights
Throughout his career, Roppongi has worked with prominent companies in the automotive industry. He has been associated with Toyota Motor Corporation and Denso Ten Limited, where he contributed to advancements in vehicle technology. His experience in these companies has allowed him to develop innovative solutions for electric and hybrid vehicles.
Collaborations
Roppongi has collaborated with notable colleagues, including Koji Hokoi and Yu Nakao. Their combined expertise has contributed to the development of cutting-edge technologies in the automotive sector.
Conclusion
Kazuto Roppongi is a distinguished inventor whose work in electric and hybrid vehicle technologies has made a significant impact. His patents reflect a commitment to improving vehicle efficiency and performance. Roppongi's contributions continue to shape the future of automotive innovation.