Junichi Nakamura

Title: Junichi Nakamura: Innovator in Hydrodynamic Bearings

Introduction

Junichi Nakamura is a notable inventor based in Ehime, Japan. He has made significant contributions to the field of engineering, particularly in the development of hydrodynamic bearing devices. With a total of 6 patents to his name, Nakamura's work has had a lasting impact on various technologies.

Latest Patents

Nakamura's latest patents include innovative designs such as a hydrodynamic bearing device, spindle motor, and recording and reproducing apparatus. One of his notable inventions features an annular groove provided to the rotary portion and/or the fixed portion in a bearing seal portion. The cross-section of this groove is shaped to approximate an arc, ensuring optimal performance. The relationship between the groove width W and the groove depth Dg is defined by the condition Dg/W < 0.4. Another significant patent focuses on a method for manufacturing a hydrodynamic bearing, which includes a shaft and a sleeve capable of relative rotation. This method ensures that the gap in the axial direction required for smooth operation is sufficiently maintained.

Career Highlights

Throughout his career, Junichi Nakamura has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in the field.

Collaborations

Nakamura has collaborated with esteemed colleagues, including Naoshi Kainoh and Akihito Shirai. These partnerships have fostered a creative environment that has led to the development of advanced technologies.

Conclusion

Junichi Nakamura's contributions to hydrodynamic bearings and related technologies highlight his innovative spirit and dedication to engineering. His patents and collaborations reflect a commitment to advancing the field, making him a significant figure in the world of inventions.