Nara, Japan

Masanori Tujikawa

This inventor holds 3 USPTO granted patents. Top assignee: Shionogi Company Limited. Active years: 1989-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Tujikawa. Retrieved from https://idiyas.com/inventor/masanori-tujikawa

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 = 7.0

ph-index = 3

Forward Citations = 86(Granted Patents)


Company Filing History:


Years Active: 1989-1991

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3 patents (USPTO):Explore Patents

Title: The Innovations of Masanori Tujikawa

Introduction

Masanori Tujikawa is a notable inventor based in Nara, Japan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of antibacterial agents. With a total of three patents to his name, Tujikawa's work has had a meaningful impact on clinical applications.

Latest Patents

Tujikawa's latest patents include a gelatin hard capsule containing a crystalline hydrate of oral cephalosporin. This invention focuses on an antibacterial compound, specifically 7.beta.-[(Z)-2-(2-aminothiazol-4-yl)-4-carboxybut-2-enoylamino]-3-cephem-4-carboxylic acid, which is stable in a di- or tri-hydrate crystal form. The patent describes how a pharmacologically effective amount of this hydrate is filled in a gelatin hard capsule and sealed with a band of gelatin, creating a stable composition for clinical use after prolonged storage. Another patent outlines the method for preparing the crystalline hydrate of the same oral cephalosporin, emphasizing its stability and effectiveness.

Career Highlights

Masanori Tujikawa is currently associated with Shionogi & Company Limited, where he continues to innovate in the pharmaceutical sector. His work is characterized by a commitment to enhancing the stability and efficacy of antibacterial medications.

Collaborations

Tujikawa has collaborated with notable colleagues such as Yoshio Hamashima and Kyoji Minami. Their combined expertise has contributed to the advancement of their shared projects and innovations.

Conclusion

Masanori Tujikawa's contributions to the field of pharmaceuticals, particularly through his innovative patents, highlight his role as a significant inventor in the industry. His work continues to influence the development of effective antibacterial 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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