Tomoyuki Sumi

Title: The Innovative Journey of Tomoyuki Sumi

Introduction

Tomoyuki Sumi, an accomplished inventor based in Kariya, Japan, has made significant contributions to the field of electric vehicle technology and refrigeration systems. With a total of eight patents to his name, Sumi's work showcases a blend of creativity and technical expertise that addresses pressing challenges in modern engineering.

Latest Patents

Sumi's latest patents include a groundbreaking power control system for electric vehicles. This innovative system is designed to supply electric power to a variety of power consumption devices within an electric vehicle. It incorporates a high voltage battery as the primary power source, along with multiple device controllers that manage the operations of the devices. The overall controller ensures efficient distribution and stable operation of these devices while enforcing electric power restrictions for optimized performance.

Another notable invention by Sumi is an advanced electric compressor. This device features a compression mechanism that efficiently discharges high-pressure refrigerant by compressing low-pressure drawn refrigerant. The electric motor drives the compression portion, while the motor drive circuit manages the motor's operation. A unique two-step compression mode allows the controller to stop the electric motor effectively, maintaining functional integrity through short-circuit braking and direct current excitation.

Career Highlights

Throughout his career, Tomoyuki Sumi has been associated with Denso Corporation, a leader in automotive technology and components. His work at Denso highlights his commitment to advancing the industry through innovative solutions that push the boundaries of conventional engineering practices.

Collaborations

In his journey, Sumi has collaborated with talented professionals, including Koji Sakai and Teruaki Ohyama. These collaborations have fostered a productive environment for innovation, where ideas transform into practical applications that benefit the automotive and refrigeration sectors.

Conclusion

Tomoyuki Sumi's inventive spirit and dedication to innovation are reflected in his impressive portfolio of patents. His contributions not only enhance the functionality of electric vehicles and refrigeration systems but also inspire future inventors to pursue technological advancements that can shape a sustainable future.