Masaru Sakuma

Title: The Innovative Contributions of Masaru Sakuma

Introduction

Masaru Sakuma is a prominent inventor based in Kai, Japan, known for his significant contributions to automotive technology. With a total of eight patents to his name, Sakuma has developed innovative solutions that enhance vehicle braking systems. His work reflects a deep understanding of mechanical engineering and a commitment to improving safety and efficiency in automotive design.

Latest Patents

Among his latest patents, Sakuma has designed an electric booster that includes a plunger movable by the operation of a brake pedal. This electric motor is controlled based on the relative displacement between the plunger and a linear motion member, which is detected by a relative displacement sensor. The system utilizes a ball and screw mechanism, where the linear motion member pushes a piston of a master cylinder through a reaction member, generating a brake force. Additionally, part of the reaction force from the master cylinder is fed back to the brake pedal through the reaction member. When a reference position sensor detects that the relative position of the plunger coincides with a predetermined reference position, the detection value of the relative displacement sensor is stored as a reference value, allowing for precise control of the braking system.

Another notable invention is a brake apparatus designed to generate hydraulic pressure in a master cylinder. This apparatus sets a control position for a primary piston and generates hydraulic pressure in response to the movement of an input piston when the brake pedal is operated. The system effectively supplies brake fluid to a brake caliper, exerting a brake effect. The brake apparatus can switch the holding position of the piston between two control positions, ensuring optimal performance when the brake is not applied.

Career Highlights

Sakuma has worked with leading companies in the automotive industry, including Hitachi Automotive Systems, Ltd. and Hitachi, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in automotive technology.

Collaborations

Throughout his career, Sakuma has collaborated with notable colleagues such as Toshio Takayama and Kazumoto Sano. These partnerships have fostered an environment of innovation and creativity, leading to the development of advanced automotive solutions.

Conclusion

Masaru Sakuma's contributions to automotive technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the design and functionality of braking systems, ensuring safer and more efficient