Yasuo Takamura

Title: Innovations by Yasuo Takamura

Introduction

Yasuo Takamura is a notable inventor based in Yamatokoriyama, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced bearing technologies. With a total of 6 patents to his name, Takamura's work has had a considerable impact on various industrial applications.

Latest Patents

One of his latest innovations is the improved sliding bearing. This design provides a fitting of a cap into a sleeve with steady fixation of adhesive, preventing any adhesive from remaining outside the desired area. The sliding bearing consists of a sleeve, a shaft enclosed within the sleeve, and a cap fitted into the sleeve. The sleeve features a shouldered hole with a first shoulder that holds the cap, while the internal circumferential surface of the sleeve or the external circumferential surface of the cap includes a second shoulder that is circumferentially formed. The second shoulder of the sleeve has an outer diameter larger than that of the cap, and an inner diameter that is approximately the same as or slightly larger than the outer diameter of the cap. Conversely, the second shoulder of the cap has an inner diameter smaller than that of the sleeve, and an outer diameter that is approximately the same as or slightly smaller than the inner diameter of the sleeve.

Another significant patent is the dynamic pressure bearing. This invention prevents leakage of liquid lubricant due to the precession of a housing. In this design, the inner diameter of a tapered inner peripheral face of the housing, which constitutes a capillary sealing portion, gradually increases as it moves from the opening toward the inner area in the axial direction. When the housing rotates, a centrifugal force applied to the liquid lubricant on the tapered inner peripheral face acts in the direction of pushing the lubricant toward the inner area. This design effectively cancels out the centrifugal force caused by the precession of the housing, thereby preventing leakage of the liquid lubricant.

Career Highlights

Yasuo Takamura is currently associated with Koyo Seiko Company, Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the performance and reliability of various mechanical systems.

Collaborations

Takamura has collaborated with several talented individuals in his field, including Takeshi Takahashi and Yasuhiro Kobayashi. These collaborations have