Gifu, Japan

Yoshikazu Hasagawa

This inventor holds 1 USPTO granted patent. Top assignee: Eisai Company, Limited. Active years: 1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Hasagawa. Retrieved from https://idiyas.com/inventor/yoshikazu-hasagawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1


Company Filing History:


Years Active: 1984

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1 patent (USPTO):Explore Patents

Title: Yoshikazu Hasagawa: Innovator in Antibacterial Drug Development

Introduction

Yoshikazu Hasagawa is a notable inventor based in Gifu, Japan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of antibacterial drugs. His innovative work has led to the creation of valuable compounds that have the potential to improve healthcare outcomes.

Latest Patents

Yoshikazu Hasagawa holds a patent for 3-Carbamoyloxymethylcephem derivatives, which are represented by a specific general formula. The invention details that R₁ can be a hydrogen atom or a trichloroacetyl group, R₂ can be a hydrogen atom or a methoxy group, and R₃ can be a hydrogen atom or a hydroxyl group, or a pharmaceutically acceptable salt thereof. These cephem derivatives are recognized for their utility as antibacterial drugs, showcasing Hasagawa's commitment to addressing medical needs.

Career Highlights

Hasagawa is associated with Eisai Company, Limited, a prominent player in the pharmaceutical industry. His work at Eisai has allowed him to focus on research and development, contributing to the advancement of medical science. His dedication to innovation is evident in his patent, which reflects his expertise and vision in the field.

Collaborations

Throughout his career, Yoshikazu Hasagawa has collaborated with esteemed colleagues, including Shigeto Negi and Yoshimasa Machida. These partnerships have fostered a collaborative environment that enhances the research and development process, leading to groundbreaking discoveries in antibacterial treatments.

Conclusion

Yoshikazu Hasagawa's contributions to the field of antibacterial drug development exemplify the impact of innovation in healthcare. His patent for 3-Carbamoyloxymethylcephem derivatives highlights his role as a key inventor in the pharmaceutical industry. Through his work at Eisai Company, Limited, and collaborations with fellow researchers, Hasagawa continues to make strides in improving medical treatments.

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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