Kanonji, Japan

Masashi Chazono

This inventor holds 2 USPTO granted patents. Top assignee: Osaka University. Active years: 1989-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masashi Chazono. Retrieved from https://idiyas.com/inventor/masashi-chazono

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 = 5.0

ph-index = 2

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1989-1992

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2 patents (USPTO):Explore Patents

Title: **Innovations by Masashi Chazono in Pertussis Vaccine Development**

Introduction

Masashi Chazono, an accomplished inventor based in Kanonzi, Japan, has made significant contributions to the field of vaccine development. With two registered patents, his work primarily focuses on innovative methods for culturing Bordetella pertussis, essential for producing pertussis toxoids used in vaccines.

Latest Patents

Chazono's latest patents detail a method for culturing Bordetella pertussis in the presence of cellulose and cellulose derivatives. This innovative approach allows for the efficient production of a mixed antigen comprising pertussis toxin and filamentous hemagglutinin at a low cost. The resulting antigen leads to the development of a stable and effective pertussis toxoid that is pivotal for creating a pertussis vaccine. Furthermore, his patents describe a vaccine formulation that includes the pertussis toxoid as an active ingredient, alongside gelatin and gelatin derivatives as stabilizing agents, ensuring prolonged stability during storage.

Career Highlights

Chazono’s affiliation with Osaka University signifies his commitment to academic excellence and research-driven innovation. His methods not only enhance the efficacy of vaccine production but also contribute to public health by providing stable and affordable vaccines against pertussis.

Collaborations

Throughout his career, Masashi has worked alongside esteemed colleagues Iwao Yoshida and Takeo Konobe. Their collective expertise and collaboration have furthered advancements in his research, pushing the boundaries of vaccine technology.

Conclusion

Masashi Chazono's contributions to immunology, especially in the development of pertussis vaccines, underscore the importance of innovative thinking in medical science. His patents reflect a deep understanding of both microbiology and vaccine formulation, paving the way for advancements that can potentially impact global health.

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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