Yokohama, Japan

Takehisa Ishii

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Kasei Corporation. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takehisa Ishii. Retrieved from https://idiyas.com/inventor/takehisa-ishii

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 = 9.0

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1996

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Innovations in Hepatic Parenchymal Cell Growth: The Legacy of Takehisa Ishii

Introduction: Takehisa Ishii, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of biotechnology. With a total of one patent to his name, Ishii's work focuses on enhancing liver cell growth through innovative methodologies.

Latest Patents: Ishii's notable patent is titled "Hepatic parenchymal cell growth factor gene encoding the same process." This invention is centered around the hepatic parenchymal cell growth factor, acquired through recombinant DNA technology. The patent details a gene coding for this factor, an expression vector capable of expressing the gene, and animal cells transformed with this vector. It also outlines a process for producing the hepatic parenchymal cell growth factor, highlighting Ishii's pioneering efforts in this critical area of research.

Career Highlights: Takehisa Ishii is associated with Mitsubishi Kasei Corporation, a leader in chemical and biotechnology innovations. His contributions have helped advance the understanding and application of hepatic parenchymal cells, which are vital for liver function and regeneration.

Collaborations: Throughout his career, Ishii has collaborated with esteemed colleagues, including Naomi Kitamura and Keiji Miyazawa. These partnerships have fostered an environment of innovation and have led to meaningful advancements in therapeutic technologies.

Conclusion: Takehisa Ishii stands out as a prominent inventor whose work with hepatic parenchymal cell growth factors demonstrates the potential of biotechnology in medicine. His sole patent exemplifies the intersection of innovation and practical application, positioning him as a notable figure in the field.

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]
Loading…