Tokyo, Japan

Hiroaki Hayashi

This inventor holds 5 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Nippon Steel Corporation, Other. Active years: 1979-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Hayashi. Retrieved from https://idiyas.com/inventor/hiroaki-hayashi-yy0bva9g

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

Calculating rank

% Patents Active = 80.0

Average Co-Inventor Count = 4.8

ph-index = 3

Forward Citations = 32(Granted Patents)


Location History:

  • Shirako, Wako-shi, Saitama-ken, JP (1979)
  • Narashino, JP (2002)
  • Osaka, JP (2002 - 2004)
  • Chiyoda-ku, JP (2009)

Company Filing History:


Years Active: 1979-2009

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5 patents (USPTO):Explore Patents

Title: **Inventor Hiroaki Hayashi: Pioneering Innovations in Steel Technologies**

Introduction

Hiroaki Hayashi, a noted inventor based in Chiyoda-ku, Japan, has made significant contributions to the field of materials engineering. With a total of five patents to his name, Hayashi's work primarily focuses on advancements in steel technologies and mechanical devices, showcasing his expertise in creating innovative solutions.

Latest Patents

One of Hayashi's latest inventions is a heat-treated steel wire designed for high-strength springs. This innovative steel wire is characterized by a precisely defined chemical composition, including carbon, silicon, manganese, chromium, phosphorus, sulfur, nitrogen, and tungsten. The wire boasts impressive tensile strength of not less than 2,000 MPa and is engineered to exhibit excellent coiling properties. Additionally, the invention features a unique microscopic structure, specifically the distribution and density of spheroidal carbides, which further enhance its mechanical properties.

Another notable invention by Hayashi is a system comprising a pusher, puller loader, unloader, and various working devices. This pusher integrates a leaf spring with a driving section, enabling the advancement and retraction of the leaf spring to efficiently move objects between defined positions. The direction-changing section of this device allows for versatile operational capabilities, making it an essential component in material handling systems.

Career Highlights

Throughout his career, Hiroaki Hayashi has worked with prominent organizations, including Matsushita Electric Industrial Co., Ltd. His tenure at these companies allowed him to hone his skills and contribute to groundbreaking innovations in industrial technology. His substantial experience in research and development has positioned him as a respected figure in the realm of engineering.

Collaborations

Hayashi's work has been enriched through collaborations with talented individuals such as Masayuki Hashimura and Hiroshi Hagiwara. Their partnership exemplifies the importance of teamwork in driving technological advancements and overcoming engineering challenges. These collaborations have not only fostered creativity but have also led to successful innovations that benefit various industries.

Conclusion

Hiroaki Hayashi's commitment to innovation and excellence is evident in his patents and contributions to materials engineering. His work on heat-treated steel wire and mechanical devices showcases the potential for new technologies to enhance performance and efficiency. As he continues to develop groundbreaking solutions, Hayashi remains a key figure in the world of inventions, demonstrating the vital role inventors play in shaping the future of technology.

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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