Saitama, Japan

Tatuo Kujirai

This inventor holds 1 USPTO granted patent. Top assignee: Chugai Seiyaku Kabushiki Kaisha. Active years: 1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatuo Kujirai. Retrieved from https://idiyas.com/inventor/tatuo-kujirai

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 = 4.0

ph-index = 1

Forward Citations = 37(Granted Patents)


Company Filing History:


Years Active: 1984

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1 patent (USPTO):Explore Patents

Title: Tatuo Kujirai: Innovator in Prolonged-Action Tablet Technology

Introduction

Tatuo Kujirai is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of pharmaceutical technology, particularly in the development of prolonged-action tablets. His innovative approach has led to advancements that enhance the efficacy of medication delivery.

Latest Patents

Kujirai holds a patent for a "Prolonged-action multiple-layer tablet." This invention features a unique design that increases the rate of dissolution of the active ingredient after a specified time. The tablet consists of two layers: layer A, which includes a mixture of a water-insoluble wax, a disintegrator, and a binder, and layer B, which contains a similar mixture along with the active ingredient. Additionally, a quick-release layer may be formed on either layer A or B to facilitate faster absorption.

Career Highlights

Kujirai is associated with Chugai Seiyaku Kabushiki Kaisha, a prominent pharmaceutical company. His work there has focused on improving drug formulations and enhancing patient outcomes through innovative tablet designs. His dedication to research and development has positioned him as a key figure in his field.

Collaborations

Kujirai has collaborated with notable colleagues, including Yoshimitsu Iida and Atsuko Yoshizawa. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise, further driving innovation in pharmaceutical technology.

Conclusion

Tatuo Kujirai's contributions to the development of prolonged-action tablets exemplify his commitment to advancing pharmaceutical science. His innovative work continues to impact the industry positively, enhancing the effectiveness of medication delivery systems.

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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