Tokyo, Japan

Tunehiko Shimizui

This inventor holds 1 USPTO granted patent. Top assignee: Denki Kagaku Kogyo Kabushiki Kaisha. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tunehiko Shimizui. Retrieved from https://idiyas.com/inventor/tunehiko-shimizui

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


Company Filing History:


Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: Tunehiko Shimizui: Innovator in Hydantoin Chemistry

Introduction

Tunehiko Shimizui is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of chemistry, particularly in the preparation of hydantoin precursors of phenylalanine. His innovative work has implications for various applications in pharmaceuticals and biochemistry.

Latest Patents

Tunehiko Shimizui holds a patent for a process that involves the preparation of a hydantoin precursor of phenylalanine. This process entails reacting a bisulfite addition salt of phenylacetaldehyde with cyanide and carbonate ions in an aqueous medium. The resulting precursor, which contains 5-benzylhydantoin as a major component, can be converted into phenylalanine through hydrolysis under basic or acidic conditions. He has 1 patent to his name.

Career Highlights

Shimizui is associated with Denki Kagaku Kogyo Kabushiki Kaisha, a company known for its advancements in chemical technology. His work has contributed to the company's reputation for innovation in the chemical industry.

Collaborations

Some of his notable coworkers include Mitsukuni Ayabe and Iwao Kibayashi. Their collaborative efforts have furthered research and development in their respective fields.

Conclusion

Tunehiko Shimizui's contributions to hydantoin chemistry exemplify the impact of innovative thinking in the scientific community. His patent and work at Denki Kagaku Kogyo Kabushiki Kaisha highlight the importance of collaboration and creativity in advancing chemical research.

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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