Sabae, Japan

Toshio Fukuoka

This inventor holds 2 USPTO granted patents. Top assignees: Shin-Etsu Handotai Co., Ltd., Shin-Etsu Quartz Products Co., Ltd.. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Fukuoka. Retrieved from https://idiyas.com/inventor/toshio-fukuoka

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 10.0

ph-index = 2

Forward Citations = 74(Granted Patents)


Company Filing History:


Years Active: 1990

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2 patents (USPTO):Explore Patents

Title: The Innovations of Toshio Fukuoka

Introduction

Toshio Fukuoka is a notable inventor based in Sabae, Japan. He has made significant contributions to the field of semiconductor materials through his innovative patents. With a total of 2 patents, Fukuoka's work has had a lasting impact on the industry.

Latest Patents

Fukuoka's latest patents focus on the manufacture of quartz glass vessels for the growth of single crystal semiconductors. One of his patents describes a quartz glass crucible designed for pulling a single crystal semiconductor material. This crucible features an opaque outer substrate made of quartz glass with a relatively high bubble content, along with an inner transparent glass layer that is substantially free from bubbles. The production process involves supporting the substrate with a rotating mold, creating a high-temperature gas atmosphere, and supplying a metered quantity of quartz powders to this atmosphere. The quartz powders are partially melted and directed toward the inner surface of the substrate to adhere effectively.

Career Highlights

Throughout his career, Fukuoka has worked with prominent companies in the semiconductor industry, including Shin-Etsu Handotai Co., Ltd. and Shin-Etsu Quartz Products Co., Ltd. His experience in these organizations has contributed to his expertise in the field.

Collaborations

Fukuoka has collaborated with notable coworkers such as Akira Uchikawa and Atsushi Iwasaki. Their combined efforts have further advanced the innovations in semiconductor technology.

Conclusion

Toshio Fukuoka's contributions to the field of semiconductor materials through his patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future innovations.

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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