Iwata, Japan

Sadaji Katogi

This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: Ntn Corporation. Active years: 1997-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadaji Katogi. Retrieved from https://idiyas.com/inventor/sadaji-katogi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0


Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 28(Granted Patents)


Location History:

  • Shizuoka, JP (2000)
  • Iwata, JP (1997 - 2008)

Company Filing History:


Years Active: 1997-2008

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4 patents (USPTO):Explore Patents

Title: Sadaji Katogi: Innovator in Bearing and Tensioning Technologies

Introduction

Sadaji Katogi is a notable inventor based in Iwata, Japan. He has made significant contributions to the fields of bearing assemblies and hydraulic tensioning systems. With a total of 4 patents to his name, Katogi's work reflects a commitment to innovation and engineering excellence.

Latest Patents

One of Katogi's latest inventions is a wheel support bearing assembly. This assembly is designed to effectively reduce frictional resistance while minimizing lubricant leakage and preventing the ingress of dust and muddy water. The assembly features an outer member and an inner member, with an annular working space defined between them. Rows of rolling elements are accommodated within this space, ensuring smooth operation. The assembly is sealed by elastic sealing lips that provide both contact and non-contact sealing effects.

Another significant patent is a hydraulic autotensioner. This device maintains constant tension in a belt, featuring a bolt fixed to a stationary member and an eccentric ring that is pivotable about the bolt. A pulley is rotatably mounted on the eccentric ring, and a tension adjusting spring biases the ring to press the belt. A hydraulic damper is included to dampen the pushing force applied to the eccentric ring, enhancing the system's reliability.

Career Highlights

Sadaji Katogi is associated with NTN Corporation, a company known for its expertise in bearing technology. His work at NTN has allowed him to develop innovative solutions that address common challenges in mechanical systems.

Collaborations

Throughout his career, Katogi has collaborated with talented individuals, including Yoshikazu Hida and Hiedeo Shinagawa. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Sadaji Katogi's contributions to the fields of bearing assemblies and hydraulic systems exemplify his innovative spirit and engineering prowess. His patents not only enhance the functionality of mechanical systems but also reflect a dedication to solving real-world problems.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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