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For the Inventor, By the Inventor

Oume, Japan

Teruki Kitayama

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

IDiyas Innovation Intelligence. (2026). Inventor Profile: Teruki Kitayama. Retrieved from https://idiyas.com/inventor/teruki-kitayama

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 5

Forward Citations = 225(Granted Patents)


Location History:

  • Oume, JP (1997 - 1999)
  • Ome, JP (2001)

Company Filing History:

goldMedal5 out of 2,569 
 
Hoya Corporation
 patents

Years Active: 1997-2001

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5 patents (USPTO):Explore Patents
1. 6187441 - Glass substrate for information recording medium and magnetic recording medium having the substrate (2001-02-13),
2. 5916656 - Sheet glass flattening method, method of manufacturing an information (1999-06-29),
3. 5725625 - Method of manufacturing a magnetic recording disk using glass substrate (1998-03-10),
4. 5681609 - Method of manufacturing a magnetic recording disk (1997-10-28),
5. 5654057 - Sheet glass flattening method, method of manufacturing glass substrate (1997-08-05),

Title: Teruki Kitayama: Innovator in Glass Substrate Technology

Introduction

Teruki Kitayama is a prominent inventor based in Oume, Japan. He has made significant contributions to the field of glass substrate technology, holding a total of five patents. His work focuses on enhancing the properties and manufacturing processes of glass substrates used in various information recording mediums.

Latest Patents

Kitayama's latest patents include innovative advancements in glass substrates for information recording mediums. One notable patent describes a glass substrate that contains at least ZrO2 and Li2O. The composition of ZrO2 is restricted to a range between 0.6 and 1.9 mol %, while Li2O is maintained between 6 and 14 mol %. This careful control of composition prevents the formation of undissolved ZrO2 projections on the glass surface, resulting in a flat substrate ideal for high-performance applications. Another patent outlines a method for manufacturing glass substrates that are particularly applicable to magnetic recording disks, LCDs, photomasks, and optical memory substrates. This method involves forming a film of a solution on the glass surface, applying pressure with a high flatness sheet, and subsequently heating and annealing the glass to achieve the desired flatness.

Career Highlights

Kitayama is currently employed at Hoya Corporation, a leading company in optical products and glass substrates. His work at Hoya has allowed him to develop cutting-edge technologies that enhance the performance and reliability of glass substrates in various applications.

Collaborations

Throughout his career, Kitayama has collaborated with notable colleagues, including Kazuhiko Sekiguchi and Teruhisa Fujita. These collaborations have contributed to the advancement of glass substrate technologies and have fostered innovation within the industry.

Conclusion

Teruki Kitayama's contributions to glass substrate technology have significantly impacted the field of information recording mediums. His innovative patents and work at Hoya Corporation demonstrate his commitment to advancing technology in this area.

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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