Shigenori Hoya

Title: Shigenori Hoya: Innovator in Bearing Technology

Introduction

Shigenori Hoya is a notable inventor based in Kitasaku-gun, Japan. He has made significant contributions to the field of bearing technology, holding a total of five patents. His innovative designs focus on improving the performance and durability of ball bearings.

Latest Patents

One of Hoya's latest patents is for a ball bearing and lubricating method. This invention utilizes a churning type of grease with a viscosity of 15–20 mm/s and a worked penetration of 200–230 at the rolling surface of the race portions. Additionally, a channeling type of grease with a viscosity of 25–35 mm/s and a worked penetration of 240–270 is used at the retainer. This configuration allows for the maintenance of a lubricant oil film during the rotation of the ball bearing, ensuring continued lubrication. Furthermore, when the ball bearing is not in rotation, the grease protects the lubricant oil film to prevent fretting.

Another significant patent is for a retainer for rolling bearings. This invention enhances the strength and rigidity of the retainer to prevent deformation caused by force and sliding friction from rolling elements. By using synthetic resin, particularly a highly elastic synthetic resin for the claws, Hoya ensures that the retainer maintains its integrity. The body portion is designed with sufficient strength to prevent deformation, thus improving the overall functionality of the rolling bearing.

Career Highlights

Shigenori Hoya has worked with prominent companies in the industry, including Minebea Company, Limited and Minebea Kabushiki-kaisha. His experience in these organizations has contributed to his expertise in bearing technology and innovation.

Collaborations

Hoya has collaborated with notable coworkers such as Sumio Sato and Takuya Yamamoto. Their combined efforts have likely fostered advancements in the field of bearing technology.

Conclusion

Shigenori Hoya's contributions to bearing technology through his innovative patents demonstrate his expertise and commitment to improving mechanical performance. His work continues to influence the industry and enhance the functionality of ball bearings.