Tokyo, Japan

Hirotaro Narabayashi

This inventor holds 1 USPTO granted patent. Top assignees: Sumitomo Chemical Company, Limited, Other. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotaro Narabayashi. Retrieved from https://idiyas.com/inventor/hirotaro-narabayashi

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 = 4.0

ph-index = 1

Forward Citations = 17(Granted Patents)


Company Filing History:

goldMedal1 out of 6,965 
 
Sumitomo Chemical Company, Limited
 patents
silverMedal1 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: Hirotaro Narabayashi: Innovator in Antiparkinsonian Treatments

Introduction

Hirotaro Narabayashi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of medicine, particularly in the treatment of Parkinson's disease. His innovative approach has led to the development of a unique antiparkinsonian agent.

Latest Patents

Narabayashi holds a patent for an antiparkinsonian agent that comprises DL- or L-threo-3,4-dihydroxyphenylserine and a decarboxylase inhibitor, such as carbidopa and benserazide. This invention is particularly useful for treating Parkinson's disease, especially addressing the freezing phenomenon that has not been effectively managed by conventional antiparkinsonian drugs like L-DOPA. He has 1 patent to his name.

Career Highlights

Throughout his career, Narabayashi has worked with prominent companies, including Sumitomo Chemical Company, Limited. His work has been instrumental in advancing treatments for neurological disorders, showcasing his dedication to improving patient outcomes.

Collaborations

Narabayashi has collaborated with esteemed colleagues, including Tomoyoshi Kondo and Akira Hayashi. Their combined expertise has contributed to the success of his innovative projects.

Conclusion

Hirotaro Narabayashi's contributions to the field of medicine, particularly in developing treatments for Parkinson's disease, highlight his role as a significant inventor. His work continues to inspire advancements in medical science and improve the lives of those affected by neurological disorders.

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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