Akita, Japan

Fumio Hamada

This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Akita University, Dowa Holdings Co., Ltd., Other. Active years: 1992-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumio Hamada. Retrieved from https://idiyas.com/inventor/fumio-hamada-3br9h5sh

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


% Patents Active = 40.0


Average Co-Inventor Count = 2.7

ph-index = 2

Forward Citations = 19(Granted Patents)


Location History:

  • Kawasaki-shi, Kanagawa JP (1992)
  • Akita-ken, JP (2011)
  • Akita, JP (2002 - 2013)

Company Filing History:

goldMedal3 out of 32 
 
Akita University
 patents
silverMedal1 out of 31 
 
Dowa Holdings Co., Ltd.
 patents
bronzeMedal2 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1992-2013

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5 patents (USPTO):Explore Patents

Title: Fumio Hamada: Innovator in Rare Metal Extraction

Introduction

Fumio Hamada is a distinguished inventor based in Akita, Japan. He has made significant contributions to the field of chemistry, particularly in the development of novel compounds and extractants for rare metals. With a total of 5 patents to his name, Hamada's work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Hamada's latest patents include a compound metal extractant and its application. One of his notable inventions is a compound represented by General Formula (1), which serves as a rare metal extractant. This invention provides a novel method for the extractive separation of rare metals using a cyclic phenol sulfide derivative, achieving high efficiency in the extraction process.

Career Highlights

Throughout his career, Fumio Hamada has been associated with Akita University, where he has contributed to research and development in his field. His work has not only advanced scientific knowledge but has also paved the way for practical applications in industry.

Collaborations

Hamada has collaborated with notable colleagues, including Yoshihiko Kondo and Chun-Bin Li. These partnerships have enriched his research and expanded the impact of his inventions.

Conclusion

Fumio Hamada's innovative contributions to rare metal extraction highlight his expertise and dedication to advancing chemical engineering. His patents reflect a commitment to developing efficient methods for resource extraction, making a significant impact in the field.

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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