Yamaguchi, Japan

Toshiyuki Isaka

This inventor holds 3 USPTO granted patents, plus 1 CIPO patent. Top assignees: Mitsui Petrochemical Industries, Ltd., Mitsui Chemicals, Inc.. Active years: 1993-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Isaka. Retrieved from https://idiyas.com/inventor/toshiyuki-isaka

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 = 3.5

ph-index = 2

Forward Citations = 37(Granted Patents)


Location History:

  • Iwakuni, JP (1993)
  • Yamaguchi, JP (1995 - 2001)

Company Filing History:


Years Active: 1993-2001

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3 patents (USPTO):Explore Patents

Title: The Innovations of Toshiyuki Isaka

Introduction

Toshiyuki Isaka is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of bisphenol compounds and lower olefins. With a total of three patents to his name, Isaka's work has had a considerable impact on the industry.

Latest Patents

Isaka's latest patents include a production process for bisphenol compounds and a process for producing lower olefins. One of his innovative processes involves dehydrating lower alcohols with 2 to 4 carbon atoms using a gamma-alumina catalyst. This catalyst contains 0.3% by weight or less of impurities, excluding SiO2, with specific limits on sulfur and sodium content. His methods allow for the production of lower olefins with high yield and selectivity over extended periods without diminishing catalytic activity.

Career Highlights

Throughout his career, Toshiyuki Isaka has worked with prominent companies such as Mitsui Petrochemical Industries, Ltd. and Mitsui Chemicals, Inc. His experience in these organizations has contributed to his expertise in chemical processes and innovation.

Collaborations

Isaka has collaborated with notable colleagues, including Shintaro Araki and Katsuo Taniguchi. These partnerships have likely enhanced his research and development efforts in the field.

Conclusion

Toshiyuki Isaka's contributions to chemical engineering and his innovative patents demonstrate his significant role in advancing production processes. His work continues to influence the industry and showcases the importance of innovation 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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