Yuuki Yokoyama

Title: Innovations by Yuuki Yokoyama

Introduction

Yuuki Yokoyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of hydraulic systems, particularly in the construction machinery sector. With a total of 3 patents to his name, Yokoyama's work reflects a commitment to enhancing the efficiency and functionality of excavators.

Latest Patents

One of his latest patents is for an excavator and method of controlling an excavator. This invention includes a swing motor driven by oil from a swing pump coupled to a power take-off and driven by an engine. It features a first main oil passage connecting a first discharge port of the swing pump and a first suction port of the swing motor, as well as a second main oil passage connecting a second discharge port of the swing pump and a second suction port of the swing motor. Additionally, it incorporates a neutral retention valve that controls the passage of oil and a regenerative energy absorbing device that captures regenerative energy generated by oil from the swing motor.

Another significant patent is a filter state estimation system and method. This system is designed to estimate the state of a filter in a hydraulic circuit. It includes a bypass channel for oil flow, a valve that opens and closes based on differential pressure, and a sensor to detect the valve's state. The system also features a temperature sensor to monitor the oil temperature, allowing for accurate estimation of the filter's condition.

Career Highlights

Yuuki Yokoyama is currently employed at Komatsu Corporation, a leading company in the construction and mining equipment industry. His work at Komatsu has allowed him to apply his innovative ideas to real-world applications, contributing to the advancement of hydraulic technology in heavy machinery.

Collaborations

Yokoyama collaborates with talented coworkers, including Masato Kageyama and Wataru Sumino. Their teamwork fosters an environment of creativity and innovation, leading to the development of cutting-edge technologies in their field.

Conclusion

Yuuki Yokoyama's contributions to hydraulic systems and excavator technology demonstrate his expertise and innovative spirit. His patents not only enhance the functionality of construction machinery but also reflect the importance of collaboration in driving technological advancements.