Chiba, Japan

Tetsujirou Kuroishi

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Oil Company. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsujirou Kuroishi. Retrieved from https://idiyas.com/inventor/tetsujirou-kuroishi

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 = 4.4

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1988

Loading Chart...
2 patents (USPTO):Explore Patents

Title: Tetsujirou Kuroishi: Innovator in Polyethylene Technology

Introduction

Tetsujirou Kuroishi is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of polymer technology, particularly in the development of polyethylene materials. With a total of 2 patents, Kuroishi's work has advanced the capabilities of molding compositions and polyethylene powders.

Latest Patents

Kuroishi's latest patents include a molding composition that features ultrahigh molecular weight polyethylene. This composition is characterized by an intrinsic viscosity of 10-30 dl/g at 135°C in decalin. The innovative process involves a multi-stage polymerization reaction, which enhances injection moldability. The first stage involves polymerizing ethylene with a specified composite catalyst, while the second stage introduces hydrogen at higher concentrations. Additionally, he has developed an ultra-high molecular weight polyethylene powder that is easily soluble in organic solvents. This powder is suitable for creating fibers or films with high strength and elastic modulus.

Career Highlights

Kuroishi is associated with Nippon Oil Company, where he has been instrumental in advancing polymer technology. His expertise in polyethylene has positioned him as a key figure in the industry. His work not only contributes to the scientific community but also has practical applications in various manufacturing processes.

Collaborations

Kuroishi has collaborated with notable colleagues such as Akira Sano and Kazuo Matsuura. Their combined efforts have led to advancements in the field of polymer science, further enhancing the capabilities of polyethylene materials.

Conclusion

Tetsujirou Kuroishi's contributions to polyethylene technology demonstrate his innovative spirit and dedication to advancing material science. His patents reflect a commitment to improving the properties and applications of polyethylene, making a lasting impact in the industry.

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…