Uji, Japan

Osamu Hirao

This inventor holds 5 USPTO granted patents and 3 EPO patents. Top assignee: Murata Kikai Kabushiki Kaisha. Active years: 1992-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Hirao. Retrieved from https://idiyas.com/inventor/osamu-hirao

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 = 1.5

ph-index = 4

Forward Citations = 43(Granted Patents)


Company Filing History:


Years Active: 1992-1999

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5 patents (USPTO):Explore Patents

Title: The Innovations of Osamu Hirao

Introduction

Osamu Hirao is a notable inventor based in Uji, Japan. He has made significant contributions to the field of spinning technology, particularly in the methods and apparatuses used in spinning machines. With a total of 5 patents to his name, Hirao's work has had a considerable impact on the textile industry.

Latest Patents

Hirao's latest patents include innovative methods for piecing yarn in spinning machines. One of his patents describes a piecing method and apparatus that prevents the formation of excessively long or frail piecing portions. This is achieved by passing the leading yarn through a twist device and driving draft rollers to remove the tapered tip of the sliver. Another patent outlines a piecing method where the leading yarn is held outside the twist device while the sliver is delivered by a re-operated draft device. This method improves the success rate of yarn piecing without requiring detailed adjustments to the pulling and supply timings.

Career Highlights

Osamu Hirao is associated with Murata Kikai Kabushiki Kaisha, a company known for its advancements in textile machinery. His work has been instrumental in enhancing the efficiency and reliability of spinning processes. Hirao's inventions reflect his deep understanding of the challenges faced in the textile industry and his commitment to finding effective solutions.

Collaborations

Hirao has collaborated with notable colleagues such as Masahiko Nishimura and Hisao Inuyama. Their combined expertise has contributed to the development of innovative technologies in the field of spinning.

Conclusion

Osamu Hirao's contributions to spinning technology through his patents and collaborations have significantly advanced the textile industry. His innovative methods continue to influence the efficiency of spinning machines, showcasing the importance of invention in industrial progress.

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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