Toyota, Japan

Yoshio Oka

This inventor holds 4 USPTO granted patents. Top assignee: Nippondenso Co., Ltd.. Active years: 1978-1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Oka. Retrieved from https://idiyas.com/inventor/yoshio-oka-3vvpxhfb

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 = 6.2

ph-index = 4

Forward Citations = 59(Granted Patents)


Location History:

  • Toyota, JA (1978)
  • Toyota, JP (1979)

Company Filing History:


Years Active: 1978-1979

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4 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Yoshio Oka

Introduction

Yoshio Oka is a prominent inventor based in Toyota, Japan. He has made significant contributions to the field of semiconductor manufacturing, holding a total of 4 patents. His work focuses on improving the efficiency and quality of semiconductor production processes.

Latest Patents

One of Oka's latest inventions is an apparatus for thermal diffusion by high frequency induction heating. This invention relates to a system designed for mass production of semiconductor substrates with uniform quality. The apparatus features multiple heating bases made of materials with excellent electric conductivity, which continuously feed semiconductor substrates through a furnace tube. The bases are heated using high frequency wave excitation, ensuring that each substrate receives consistent thermal treatment.

Another notable patent is a gaseous atmosphere control apparatus for semiconductor manufacturing. This apparatus is designed to maintain a uniform gaseous atmosphere during the heat treatment of semiconductors. It includes a reaction pipe for transferring semiconductor wafers, along with a gas distribution pipe that guides the wafers and supplies heat-treating gas. The distribution pipe is equipped with blow-off holes that increase in diameter along its length, effectively controlling the gaseous atmosphere within the reaction pipe.

Career Highlights

Yoshio Oka has built a successful career at Nippondenso Co., Ltd., where he has been instrumental in advancing semiconductor technologies. His innovative approaches have contributed to the company's reputation as a leader in the industry.

Collaborations

Oka has collaborated with notable colleagues, including Masao Yamawaki and Katsuo Aoki. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Yoshio Oka's contributions to semiconductor manufacturing through his innovative patents demonstrate his commitment to advancing technology in this critical field. His work continues to influence the industry and improve production processes.

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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