Hirofumi Dodoro

Title: The Innovations of Hirofumi Dodoro

Introduction

Hirofumi Dodoro is a notable inventor based in Kashihara, Japan. He has made significant contributions to the field of engineering, particularly in the development of mechanical devices. With a total of 7 patents to his name, Dodoro's work showcases his innovative spirit and technical expertise.

Latest Patents

One of his latest inventions is a ball screw device. This device includes a screw shaft, a nut with a second helical groove, and a plurality of balls. When the screw shaft is rotated about its axis while subjected to external force, the balls are displaced from their positions under no load condition toward one side in an axial direction. The nut's second helical groove features a stopping member designed to prevent the balls from falling off. Additionally, a series of coil springs are arranged along the second helical groove, with each coil spring occupying an angle of 180 degrees or less in the circumferential direction.

Another significant patent is the rolling bearing device. This device consists of an inner ring and an outer ring, which is arranged in a concave part of a fixing member. The outer ring is preloaded in an axial direction toward the inner ring via a rolling element. A vibration isolating part, made of a laminated body with metal and resin layers, is press clamped between the outer ring and the bottom surface of the concave part, aligning the direction of lamination with the axial direction.

Career Highlights

Hirofumi Dodoro has worked with prominent companies such as JTEKT Corporation and Koyo Seiko Company, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Throughout his career, Dodoro has collaborated with talented individuals, including Hiroki Matsuyama and Kazutoshi Toda. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hirofumi Dodoro's contributions to the field of engineering through his patents and collaborations highlight his role as an influential inventor. His innovative designs, such as the ball screw device and rolling bearing device, demonstrate his commitment to advancing technology.