Hideaki Toma is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of engineering, particularly in the development of displacement control systems for variable displacement pumps. With a total of 2 patents to his name, Toma's work showcases his expertise and innovative spirit.

Latest Patents

Toma's latest patents include a displacement control system for a variable displacement pump. This system comprises a charge pump and a cut-off control valve connected to the charge pump. The valve body features a first and a second pump port, along with an outlet port. The first pump port connects to the charge pump, while the second pump port connects to the variable displacement pump. The design includes a sleeve, a pin, a spool, and a cylindrical cap member that defines a spring chamber. A spring within this chamber urges the spool to connect the first pump port with the outlet port. Additionally, a servo booster is connected to the outlet port to control the displacement of the variable displacement pump.

Another patent by Toma also focuses on a displacement control system for a variable displacement pump. This system includes a charge pump and two actuators connected in parallel to the variable displacement pump. The cut-off control valve in this design features a valve body with a first and a second pump port, a pressure port, and an outlet port. The first pump port connects to the charge pump, while the second pump port connects to the variable displacement pump. The pressure port connects to the first actuator. Similar to his other patent, this design includes a sleeve, pins, a spool, and a spring chamber, with a servo booster connected to the outlet port for controlling the displacement.

Career Highlights

Hideaki Toma is currently employed at Komatsu Ltd., a leading company in the manufacturing of construction and mining equipment. His work at Komatsu has allowed him to apply his innovative ideas in practical applications, contributing to the advancement of technology in his field.

Collaborations

Throughout his career, Toma has collaborated with notable colleagues such as Kazuo Uehara and Yoshito Sato. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Hideaki Toma's contributions to the field of engineering, particularly in the area of displacement

Profile summary based on public USPTO records.

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