Ichiharashi, Japan

Fumio Sagara

This inventor holds 1 USPTO granted patent. Top assignee: Chisso Corporation. Active years: 1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumio Sagara. Retrieved from https://idiyas.com/inventor/fumio-sagara

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 = 3.0

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1981

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Fumio Sagara: Revolutionizing Plasticizer Production

Introduction: Fumio Sagara, a distinguished inventor from Ichiharashi, Japan, has made significant strides in the field of chemical engineering. With a focus on sustainability, he has developed a novel method for producing plasticizers that minimizes waste and environmental impact. His work underscores the importance of innovation in creating efficient and eco-friendly chemical processes.

Latest Patents: Fumio Sagara holds a patent for a method for producing plasticizers, which is characterized by a unique process that incorporates only a minimal amount of titanium. The innovation lies in the method's ability to significantly reduce wastewater production. The process involves reacting phthalic anhydride with an alcohol containing 4 to 18 carbon atoms, using a tetraalkyl titanate or its polymer as a catalyst. A notable feature of this method is the treatment of the resultant ester with solid alkali and adsorbing agents without the use of water, thereby enhancing its eco-friendliness.

Career Highlights: Throughout his career, Sagara has dedicated himself to advancing chemical manufacturing techniques. His affiliation with Chisso Corporation, a notable company in the chemical industry, has allowed him to actively contribute to innovative projects and research endeavors. His patent not only exemplifies his technical expertise but also reflects his commitment to addressing environmental concerns within the industry.

Collaborations: Fumio Sagara has worked alongside esteemed colleagues, including Hiroshi Kawabata and Kiyonori Shiiba. This collaboration has fostered a rich exchange of ideas and knowledge, ultimately leading to enhanced research outcomes and the development of breakthrough solutions within the field of chemical production.

Conclusion: The work of Fumio Sagara highlights the vital intersection of innovation and environmental consciousness in modern manufacturing. His patent for producing eco-friendly plasticizers stands as a testament to his ingenuity and dedication to sustainable practices. As industries continue to evolve, inventors like Sagara play a critical role in paving the way for more responsible and efficient production methods.

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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