Annaka, Japan

Tetsuya Oka

This inventor holds 2 USPTO granted patents and 3 published patent applications. Top assignee: Shin-Etsu Handotai Co., Ltd.. Active years: 2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Oka. Retrieved from https://idiyas.com/inventor/tetsuya-oka-8ux44enw

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

USPTO Granted Patents = 2 

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 1


Location History:

  • Annaka, JP (2016)
  • Takasaki, JP (2016)

Company Filing History:


Years Active: 2016

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2 patents (USPTO):Explore Patents

Title: Innovations of Tetsuya Oka in Silicon Manufacturing

Introduction

Tetsuya Oka is a prominent inventor based in Annaka, Japan. He has made significant contributions to the field of silicon manufacturing, holding a total of 2 patents. His work focuses on advanced methods for producing silicon substrates and single crystal wafers, which are essential components in various electronic devices.

Latest Patents

Oka's latest patents include a method for manufacturing silicon substrates and a method for manufacturing silicon single crystal wafers. The first patent describes a process that involves rapid heat treatment of a silicon substrate, maintaining it at a temperature above 1300°C for a brief period. This method enhances the quality of the silicon substrate sliced from a single crystal ingot. The second patent outlines a technique for creating silicon single crystal wafers, which includes a two-step heat treatment process to form an oxygen concentration peak region. This innovation allows for the development of an excellent gettering layer close to the device forming region.

Career Highlights

Tetsuya Oka is associated with Shin-Etsu Handotai Co., Ltd., a leading company in the semiconductor industry. His work has been instrumental in advancing the manufacturing processes of silicon materials, contributing to the efficiency and performance of electronic devices.

Collaborations

Oka has collaborated with notable colleagues, including Koji Ebara and Shuji Takahashi. Their combined expertise has furthered the research and development of innovative silicon manufacturing techniques.

Conclusion

Tetsuya Oka's contributions to silicon manufacturing through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the semiconductor industry and improve electronic device performance.

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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