Hitachi, Japan

Katsumi Oyabu

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Oyabu. Retrieved from https://idiyas.com/inventor/katsumi-oyabu

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 = 5.1

ph-index = 2

Forward Citations = 33(Granted Patents)


Company Filing History:


Years Active: 1983

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2 patents (USPTO):Explore Patents

Title: Innovations by Katsumi Oyabu

Introduction

Katsumi Oyabu is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of engineering, particularly in the development of systems and methods that enhance the performance and reliability of mechanical components. With a total of 2 patents to his name, Oyabu's work reflects a commitment to innovation and practical solutions.

Latest Patents

One of Oyabu's latest patents is a "Method of and system for monitoring bearing conditions." This invention involves a method and system designed to monitor the conditions of a journal bearing that supports a rotatable shaft through an oil film. The system utilizes detectors to measure the speed of rotation of the shaft and the pressure of the oil film. By calculating the load on the journal bearing based on these parameters, the system aims to improve the reliability and efficiency of machinery.

Another significant patent is the "Device for connecting turbine blades." This invention pertains to a device that connects the turbine blades of a turbine using a plate-shaped member at the radially outer end of each blade. The design includes through bores in the projected portions of the plate-shaped member, allowing connecting members with cylindrical pins to be rotatably received. This innovative approach helps restrict the untwisting of the turbine blades while providing a vibration damping effect during operation.

Career Highlights

Katsumi Oyabu is associated with Hitachi, Ltd., a leading company in technology and engineering. His work at Hitachi has allowed him to contribute to various projects that enhance the performance of mechanical systems. His inventions demonstrate a deep understanding of engineering principles and a dedication to advancing technology.

Collaborations

Throughout his career, Oyabu has collaborated with esteemed colleagues such as Kazuo Ikeuchi and Tsuguaki Koga. These collaborations have fostered an environment of innovation and have led to the development of groundbreaking technologies in their respective fields.

Conclusion

Katsumi Oyabu's contributions to engineering through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative solutions continue to impact the field positively, showcasing the importance of creativity and technical expertise in engineering advancements.

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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