Kanagawa, Japan

Yoshitaro Naganuma

This inventor holds 1 USPTO granted patent. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshitaro Naganuma. Retrieved from https://idiyas.com/inventor/yoshitaro-naganuma

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 = 8.0

ph-index = 1


Company Filing History:


Years Active: 1992

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1 patent (USPTO):Explore Patents

Title: The Innovations of Yoshitaro Naganuma

Introduction

Yoshitaro Naganuma is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of chemical engineering, particularly in the preparation of acyclic ethyleneamines. His innovative approach has led to advancements in catalyst performance and longevity.

Latest Patents

Naganuma holds a patent for a process that involves the reaction of at least one of ammonia and ethylenediamine with monoethanolamine. This process is conducted in the presence of a catalyst containing phosphoric acid or its condensate. The innovation lies in the ability to enhance the catalyst's performance and extend its life by introducing a phosphorus-containing material during the reaction. Additionally, the catalyst can be reactivated by adding this material, showcasing Naganuma's ingenuity in chemical processes. He has 1 patent to his name.

Career Highlights

Yoshitaro Naganuma is associated with Mitsui Toatsu Chemicals, Incorporated, where he has applied his expertise in chemical processes. His work has contributed to the company's reputation for innovation in the chemical industry.

Collaborations

Naganuma has collaborated with esteemed colleagues such as Eiichi Sugiyama and Takashi Jimbo. Their combined efforts have furthered research and development in their field.

Conclusion

Yoshitaro Naganuma's contributions to the preparation of acyclic ethyleneamines and catalyst innovation highlight his role as a significant inventor in the chemical engineering sector. His work continues to influence advancements in the industry.

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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