Amagasaki, Japan

Takao Sagara

This inventor holds 3 USPTO granted patents. Top assignee: Kubota Corporation. Active years: 1978-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Sagara. Retrieved from https://idiyas.com/inventor/takao-sagara

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 = 3.3

ph-index = 3

Forward Citations = 31(Granted Patents)


Location History:

  • Amagasaki, JA (1978)
  • Amagasaki, JP (1978 - 1980)

Company Filing History:


Years Active: 1978-1980

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3 patents (USPTO):Explore Patents

Title: Takao Sagara: Innovator in Pipe Joint Technology

Introduction

Takao Sagara is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of pipe joint technology, holding a total of 3 patents. His innovative designs focus on enhancing the functionality and reliability of pipe joints.

Latest Patents

One of Sagara's latest patents is the "Separation-prevented pipe joint which can be assembled from inside pipe." This invention features an annular groove on the open end inner periphery of a socket, along with a seal member stopping projection that extends from the inner surface of the socket. A split lock ring is fitted in the annular groove, and a projection on the spigot engages with the lock ring and stop projection. This design ensures a secure connection and prevents separation. Another patent, the "Separation-preventive pipe joint," involves a spigot inserted into a socket with a seal packing pressed into an annular space. The lock ring, which can be inserted from the annular space, has a diametrically expanding force, allowing for a secure fit.

Career Highlights

Takao Sagara is currently employed at Kubota Corporation, where he continues to innovate in the field of pipe joint technology. His work has been instrumental in developing solutions that enhance the safety and efficiency of piping systems.

Collaborations

Sagara has collaborated with notable coworkers, including Toshi Nakajima and Tadao Yamaji. Their combined expertise has contributed to the advancement of innovative technologies within their field.

Conclusion

Takao Sagara's contributions to pipe joint technology exemplify the spirit of innovation. His patents reflect a commitment to improving the functionality and reliability of piping systems. Through his work at Kubota Corporation, he continues to make a significant impact in the industry.

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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