Yamanashi, Japan

Takeshi Kojima

This inventor holds 5 USPTO granted patents. Top assignee: Hoya Corporation. Active years: 1997-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Kojima. Retrieved from https://idiyas.com/inventor/takeshi-kojima-5i2zffpf

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 = 4.3

ph-index = 5

Forward Citations = 187(Granted Patents)


Location History:

  • Yamanashi-ken, JP (1997 - 1998)
  • Yamanashi, JP (2000 - 2001)

Company Filing History:


Years Active: 1997-2001

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5 patents (USPTO):Explore Patents

Title: The Innovations of Takeshi Kojima

Introduction

Takeshi Kojima is a prominent inventor based in Yamanashi-ken, Japan. He has made significant contributions to the field of magnetic recording technology. With a total of five patents to his name, Kojima's work has had a substantial impact on the industry.

Latest Patents

Kojima's latest patents include advancements in glass substrates and magnetic recording mediums. One of his notable inventions involves a glass substrate designed for use in magnetic recording mediums. This substrate features a pair of principal surfaces opposite each other and a peripheral side area that is contiguous to these surfaces. The design includes a side end wall and intermediate regions, with at least one of these areas being mirror finished. This mirror finish ensures that the surface roughness is minimal, preventing the generation of particles that could lead to reproduction errors. As a result, the technology allows for error-free reproduction and significantly reduces the risk of head crashes.

Career Highlights

Kojima has built a successful career at Hoya Corporation, where he has been able to apply his innovative ideas. His work has not only advanced the technology but has also contributed to the company's reputation as a leader in optical and imaging solutions.

Collaborations

Throughout his career, Kojima has collaborated with talented individuals such as Teruki Kitayama and Kazuhiko Sekiguchi. These partnerships have fostered an environment of creativity and innovation, leading to the development of groundbreaking technologies.

Conclusion

Takeshi Kojima's contributions to the field of magnetic recording technology exemplify the spirit of innovation. His patents reflect a commitment to excellence and a desire to push the boundaries of what is possible in 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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