Kiyoshige Yamauchi

Title: **Innovative Contributions of Kiyoshige Yamauchi**

Introduction

Kiyoshige Yamauchi, an accomplished inventor from Iwata, Japan, has made significant strides in the field of bearing technology. With a remarkable portfolio of 23 patents, Yamauchi's innovations have enhanced the performance and reliability of mechanical components in various applications.

Latest Patents

Among his latest patents are the innovative rolling bearing and a travel unit that incorporates rolling bearings. This rolling bearing design features rolling elements situated between an outer race and an inner race, complete with a resin seal ring that covers an opening at one end of the bearing space. Additionally, it includes a filter to capture foreign matter in lubricating oil, with both the filter and seal ring integrated through insert molding from the same material. This unique construction accommodates thermal expansion, ensuring that the resin seal ring remains effective during operation.

Another notable patent is the tapered roller bearing, specifically utilized in a planetary gear speed reducer. This design includes an outer race and a specialized retainer composed of annular portions and pillars, which work together to guide the retainer in a radial direction. This innovative feature minimizes tilting caused by centrifugal forces, allowing for better axial load distribution on the outer race.

Career Highlights

Yamauchi holds a prominent position at NTN Corporation, a company well-regarded for its advancements in bearing technology. His work has been instrumental in positioning the company as a leader in innovation. His patents not only contribute to the company’s portfolio but also have a lasting impact on the industry standards for bearings.

Collaborations

Throughout his career, Kiyoshige Yamauchi has collaborated with notable coworkers, including Masahiro Ozawa and Mitsuru Umekida. These collaborations have fostered an environment of creativity and innovation, leading to groundbreaking developments in bearing technologies.

Conclusion

Kiyoshige Yamauchi's contributions to the field of mechanical engineering through his patents and collaborative work highlight his role as a prominent inventor. His commitment to innovation at NTN Corporation continues to influence the industry, ensuring enhanced efficiency and performance across various applications in the realm of engineering.