Tsukuba, Japan

Takeshi Ishiyama

This inventor holds 3 USPTO granted patents and 6 published patent applications and 1 EPO patent. Top assignees: Sumitomo Chemical Company, Limited, Kyushu University, Oita University. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Ishiyama. Retrieved from https://idiyas.com/inventor/takeshi-ishiyama

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

USPTO Granted Patents = 3 

% Patents Active = 33.3

 

Average Co-Inventor Count = 4.7

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2011-2025

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3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Takeshi Ishiyama

Introduction

Takeshi Ishiyama is a notable inventor based in Tsukuba, Japan. He has made significant contributions to the field of chemical engineering and materials science, holding a total of 3 patents. His work focuses on the development of innovative methods and materials that have practical applications in various industries.

Latest Patents

Ishiyama's latest patents include a porous inorganic carrier and a method for producing nucleic acid using the same. This invention features an inorganic porous carrier with a mode diameter in a pore distribution ranging from 0.04 μm to 1 μm, and a predetermined cumulative pore volume ratio of 30% or less. The carrier is designed to enhance the efficiency of nucleic acid production. Another significant patent is a method of manufacturing olefin having 2 to 4 carbon atoms through the Fischer-Tropsch reaction. This method involves reacting a catalyst with synthesis gas to produce olefins, utilizing a catalyst derived from iron and cobalt ions.

Career Highlights

Throughout his career, Takeshi Ishiyama has worked with prominent organizations such as Sumitomo Chemical Company, Limited and Kyushu University. His experience in these institutions has allowed him to refine his expertise and contribute to groundbreaking research and development projects.

Collaborations

Ishiyama has collaborated with esteemed colleagues, including Hideyuki Higashimura and Hiroshi Takigawa. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Takeshi Ishiyama's contributions to the field of chemical engineering and materials science are noteworthy. His innovative patents and collaborations highlight his commitment to advancing technology and improving industrial processes. His work continues to inspire future generations of inventors and researchers.

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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