Kagoshima, Japan

Keiji Usami

This inventor holds 3 USPTO granted patents. Top assignee: Kyocera Corporation. Active years: 2004-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Usami. Retrieved from https://idiyas.com/inventor/keiji-usami

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 = 19(Granted Patents)


Location History:

  • Kagoshima, JP (2004 - 2006)
  • Sendai, JP (2007)

Company Filing History:


Years Active: 2004-2007

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3 patents (USPTO):Explore Patents

Title: Keiji Usami: Innovator in Cutting Tool Technology

Introduction

Keiji Usami is a prominent inventor based in Kagoshima, Japan. He has made significant contributions to the field of cutting tool technology, holding a total of 3 patents. His work focuses on enhancing the performance and durability of cutting tools through innovative materials and coatings.

Latest Patents

One of Usami's latest patents is for a surface-coated member. This invention involves a base body made of materials such as cemented carbide or cermet, which is coated with a hard coating layer. This layer consists of at least one TiCN layer and an AlO layer formed on the surface of the TiCN layer. The TiCN layer is characterized by stringer-like TiCN crystals that grow perpendicular to the base body, ensuring excellent breakage resistance and high wear resistance during cutting operations. Another notable patent involves a cemented carbide that comprises a hard phase component made of tungsten carbide and other metal carbides, nitrides, or carbonitrides. This cemented carbide is designed to have high hardness and toughness, making it suitable for use as a cutting tool.

Career Highlights

Keiji Usami has been associated with Kyocera Corporation, where he has played a vital role in advancing cutting tool technology. His innovative approaches have led to the development of products that meet the demands of harsh cutting conditions, ensuring longevity and reliability.

Collaborations

Usami has collaborated with notable coworkers, including Daisuke Shibata and Hiroshi Ohata. Their combined expertise has contributed to the successful development of cutting-edge technologies in the field.

Conclusion

Keiji Usami's contributions to cutting tool technology through his patents and work at Kyocera Corporation highlight his role as an influential inventor. His innovations continue to impact the industry positively, ensuring enhanced performance and durability in cutting tools.

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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