Ichihara, Japan

Rikuo Ohnishi

This inventor holds 2 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignee: Idemitsu Petrochemical Co., Ltd.. Active years: 1991-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rikuo Ohnishi. Retrieved from https://idiyas.com/inventor/rikuo-ohnishi

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.7

ph-index = 2

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1991-1994

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2 patents (USPTO):Explore Patents

Title: Rikuo Ohnishi: Innovator in Polyolefin Production

Introduction

Rikuo Ohnishi is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of polyolefins. With a total of 2 patents to his name, Ohnishi's work has advanced the efficiency and quality of polyolefin manufacturing processes.

Latest Patents

Ohnishi's latest patents include a method for producing polyolefin that involves polymerizing an alpha-olefin in the presence of a specific catalyst composition. This method eliminates the need for a step to remove catalyst residue from the produced polypropylene, resulting in products with well-balanced mechanical properties such as stiffness and impact strength. His other patent details a method of producing polyolefins using a catalyst that includes magnesium, titanium, halogen, and an electron donor, enhancing the polymerization process.

Career Highlights

Rikuo Ohnishi is currently employed at Idemitsu Petrochemical Co., Ltd., where he continues to innovate in the field of polymer production. His expertise in catalyst development has positioned him as a key figure in advancing polyolefin technology.

Collaborations

Ohnishi has collaborated with notable colleagues such as Hideo Funabashi and Akira Tanaka, contributing to various projects that enhance the understanding and application of polymer chemistry.

Conclusion

Rikuo Ohnishi's contributions to polyolefin production through his innovative patents and collaborative efforts highlight his importance in the field of polymer chemistry. His work continues to influence the industry and improve manufacturing processes.

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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