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For the Inventor, By the Inventor

Tokyo, Japan

Yoshikage Nakajima

This inventor holds 9 USPTO granted patents. Top assignee: Eisai Company, Limited. Active years: 1978-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikage Nakajima. Retrieved from https://idiyas.com/inventor/yoshikage-nakajima

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 5

Forward Citations = 52(Granted Patents)


Company Filing History:

goldMedal9 out of 677 
 
Eisai Company, Limited
 patents

Years Active: 1978-1991

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9 patents (USPTO):Explore Patents
1. 5002958 - Hypotensive agent (1991-03-26),
2. 4421763 - Cyclohexane derivatives, process for preparation thereof and medicines (1983-12-20),
3. 4350705 - Cyclohexane derivatives, process for preparation thereof and medicines (1982-09-21),
4. 4325974 - .beta., .gamma.-Dihydropolyprenyl alcohol and hypotensive pharmaceutical (1982-04-20),
5. 4199587 - Method of treating hypertension with polyprenyl alcohol ester (1980-04-22),
6. 4175139 - Hypertension treating agent containing polyprenyl alcohol (1979-11-20),
7. 4130659 - Polyprenyl carboxylic acid compound and hypotensive agent containing it (1978-12-19),
8. 4113870 - Method for treatment of hypertension (1978-09-12),
9. 4107193 - Polyprenyl carboxylic acid compound (1978-08-15),

Title: The Innovative Contributions of Yoshikage Nakajima

Introduction

Yoshikage Nakajima is a distinguished inventor based in Tokyo, Japan, recognized for his significant contributions to the field of pharmaceuticals. With a remarkable record of nine patents, Nakajima has dedicated his career to developing innovative solutions for medical challenges, particularly in the realm of hypotensive and antihypertensive agents.

Latest Patents

Among his latest inventions, Nakajima has developed a hypotensive agent known as 4'-ethyl-2-methyl-3-piperidinopropiophenone, or its pharmacologically acceptable salts, which are recognized for their efficacy in lowering blood pressure. Additionally, he has made strides in creating cyclohexane derivatives, specifically 2-substituted-cyclohexane-1,3-diones, which possess noteworthy antihypertensive activity.

Career Highlights

Yoshikage Nakajima is currently associated with Eisai Company, Limited, where he continues to advance pharmaceutical research and development. His work has not only led to valuable patents but has also contributed to enhancing therapeutic options for patients with hypertension.

Collaborations

Throughout his illustrious career, Nakajima has collaborated with esteemed colleagues, including Toshiji Igarashi and Isao Yamatsu. These collaborations have fostered innovative research efforts and have been instrumental in the successful development of new pharmaceutical agents.

Conclusion

Yoshikage Nakajima's dedication to innovation in the pharmaceutical industry exemplifies the impact that inventors can have on society. His work continues to inspire future generations of researchers and inventors striving to make a difference in the field of medicine. With his impressive portfolio of patents, Nakajima remains a pivotal figure in the advancement of medical therapies for hypertension.

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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