Chiba, Japan

Toshio Itoh

This inventor holds 5 USPTO granted patents. Top assignees: Idemitsu Kosan Company, Limited, Petroleum Energy Center, Research Association for Petroleum Alternatives Development. Active years: 1991-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Itoh. Retrieved from https://idiyas.com/inventor/toshio-itoh-esi47fau

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

Calculating rank

% Patents Active = 80.0

Average Co-Inventor Count = 1.4

ph-index = 3

Forward Citations = 46(Granted Patents)


Location History:

  • Sodegaura, JP (1994 - 2001)
  • Chiba, JP (1991 - 2010)

Company Filing History:


Years Active: 1991-2010

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5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Toshio Itoh

Introduction

Toshio Itoh, an accomplished inventor based in Chiba, Japan, has made significant strides in the field of catalytic cracking technology. With a total of five patents to his name, Itoh's innovations primarily focus on enhancing the production processes for olefins and fuel oil from heavy hydrocarbons.

Latest Patents

Among his noteworthy inventions is a catalytic cracking catalyst specifically designed for heavy oil. This innovative catalyst effectively inhibits the production of light paraffins during catalytic cracking, leading to a high yield of olefins. The catalyst composition includes a pentasil-type zeolite modified with rare earth elements and zirconium, as well as faujasite-type zeolite. The associated production process involves bringing heavy oil—containing over 50 mass percent of hydrocarbons with boiling points above 180°C—into contact with the catalyst for efficient cracking.

Another significant patent by Itoh describes a catalytic cracking catalyst composition comprising spherical boehmite gel alumina, zeolite, clay minerals, and a binder. The process includes the production of a spherical catalyst through spray-drying a slurry followed by calcination, allowing for effective catalytic cracking of heavy oil.

Career Highlights

Toshio Itoh has worked with notable organizations in the energy sector, including Idemitsu Kosan Company, Limited and the Petroleum Energy Center. His work has significantly contributed to advancements in refining technologies and the efficient production of valuable hydrocarbons.

Collaborations

Throughout his career, Itoh has collaborated with experts such as Takashi Yamamoto and Kenichi Wakui. These partnerships have enriched his research and development efforts, leading to innovative solutions in catalysis and heavy oil processing.

Conclusion

Toshio Itoh’s work embodies the essence of innovation in the oil refining industry. With his unique approach to catalyst development and production processes, he has opened new avenues for producing olefins and fuel oils, showcasing the critical role of inventors in advancing technology and sustainability in energy production.

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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