Itami, Japan

Hitoshi Tohkairin

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Sumitomo Electric Hardmetal Corp., Mitsubishi Hitachi Power Systems, Ltd.. Active years: 2018-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Tohkairin. Retrieved from https://idiyas.com/inventor/hitoshi-tohkairin

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

USPTO Granted Patents = 4 

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 1

Forward Citations = 2(Granted Patents)


Location History:

  • Itami, JP (2018)
  • Hyogo, JP (2024)

Company Filing History:


Years Active: 2018-2025

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4 patents (USPTO):Explore Patents

Title: The Innovative Mind of Hitoshi Tohkairin

Introduction

Hitoshi Tohkairin, an accomplished inventor based in Itami, Japan, has made significant contributions to the field of engineering, particularly in the development of cutting tools. With a portfolio of four patents to his name, Tohkairin's latest innovations reflect his expertise and commitment to advancing manufacturing technologies.

Latest Patents

Among his notable inventions is the boring tool holder, which features a base member with first and second main surfaces, providing enhanced functionality in holding cutting inserts. The design ensures that the cross-sectional area of the base member exceeds that of the cutting insert holding member, allowing for improved stability and performance in machining operations. Additionally, Tohkairin has developed a cutting tool that further showcases his ingenuity in enhancing manufacturing efficiency.

Career Highlights

Tohkairin's professional journey includes significant tenures at renowned companies such as Sumitomo Electric Hardmetal Corporation and Mitsubishi Hitachi Power Systems, Ltd. His work in these prestigious organizations has solidified his reputation as a forward-thinking innovator in the industry.

Collaborations

Throughout his career, Hitoshi Tohkairin has collaborated with talented colleagues, including Takahiro Watanabe and Shinichi Maruyama. Working together with such skilled professionals has allowed for the exchange of ideas and the advancement of innovative projects within their respective fields.

Conclusion

Hitoshi Tohkairin stands out as a prominent inventor whose work continues to influence the engineering landscape. His innovative designs, particularly in cutting tools, demonstrate not only his technical expertise but also his dedication to improving industry standards. Through his collaborations and career achievements, Tohkairin remains a pivotal figure in the realm of inventions and patents.

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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