Tokyo, Japan

Tadahiro Kumagai

This inventor holds 3 USPTO granted patents, plus 3 CIPO patents. Top assignee: Asahi Kasei Kabushiki Kaisha. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadahiro Kumagai. Retrieved from https://idiyas.com/inventor/tadahiro-kumagai

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


% Patents Active = 66.7


Average Co-Inventor Count = 2.4

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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3 patents (USPTO):Explore Patents

Title: The Innovations of Tadahiro Kumagai

Introduction

Tadahiro Kumagai is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of cellulose compositions and their applications in pharmaceuticals. With a total of 3 patents, his work focuses on enhancing the effectiveness and usability of cellulose in various forms.

Latest Patents

Kumagai's latest patents include innovative formulations that utilize cellulose. The first patent describes a cellulose composition that contains cellulose, glucose, and sorbitol, with a specific content range of glucose and sorbitol per 5 grams of the cellulose composition. This formulation is designed for use in tablets and orally disintegrating tablets. The second patent presents a cellulose powder that contains an alkali-soluble substance, which can dissolve in a 17.5% aqueous sodium hydroxide solution. This cellulose powder has a defined content range of the alkali-soluble substance, making it suitable for various tablet applications.

Career Highlights

Kumagai is currently employed at Asahi Kasei Kabushiki Kaisha, a leading company in the chemical and materials industry. His work at Asahi Kasei has allowed him to explore and develop innovative cellulose-based products that have practical applications in the pharmaceutical sector.

Collaborations

Throughout his career, Kumagai has collaborated with talented individuals such as Kaede Tamari and Naoya Yoshida. These collaborations have contributed to the advancement of his research and the successful development of his patented inventions.

Conclusion

Tadahiro Kumagai's contributions to cellulose compositions and their applications in tablets highlight his innovative spirit and dedication to advancing pharmaceutical technology. His work continues to impact the industry positively, showcasing the importance of research and development in creating effective solutions.

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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