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For the Inventor, By the Inventor

Osaka, Japan

Mayumi Iwagawa

This inventor holds 2 USPTO granted patents. Top assignees: Hitachi Maxell, Limited, Hitachi Maxwell, Ltd.. Active years: 2001-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mayumi Iwagawa. Retrieved from https://idiyas.com/inventor/mayumi-iwagawa

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

USPTO Granted Patents = 2

% Patents Active = 50.0

Average Co-Inventor Count = 7.0

ph-index = 1

Forward Citations = 29(Granted Patents)


Company Filing History:

goldMedal1 out of 1,112 
 
Hitachi Maxell, Limited
 patents
silverMedal1 out of 56 
 
Hitachi Maxwell, Ltd.
 patents

Years Active: 2001-2003

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2 patents (USPTO):Explore Patents
1. 6562313 - Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same (2003-05-13),
2. 6275371 - Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same (2001-08-14),

Title: Mayumi Iwagawa: Innovator in Electrochemical Capacitors

Introduction

Mayumi Iwagawa is a prominent inventor based in Osaka, Japan. She has made significant contributions to the field of electrochemical capacitors, holding a total of 2 patents. Her work focuses on developing advanced materials that enhance the performance and capacity of these energy storage devices.

Latest Patents

Iwagawa's latest patents include an innovative electrode material for electrochemical capacitors. This material features a titanium oxide compound, which may include titanium oxide, hydrated titanium oxide, or their hydrogenated products. Additionally, it incorporates at least one oxidizable and reducible metal element contained within the titanium oxide compound. This advancement aims to provide a large capacity for electrochemical capacitors, thereby improving their efficiency and effectiveness.

Career Highlights

Throughout her career, Mayumi Iwagawa has worked with notable companies such as Hitachi Maxwell, Ltd. and Hitachi Maxell, Limited. Her experience in these organizations has allowed her to refine her expertise in the development of cutting-edge technologies related to energy storage.

Collaborations

Iwagawa has collaborated with esteemed colleagues, including Yasushi Murakami and Mitsuo Ueno. These partnerships have contributed to her innovative work and the successful development of her patented technologies.

Conclusion

Mayumi Iwagawa stands out as a key figure in the advancement of electrochemical capacitors. Her innovative patents and collaborative efforts highlight her commitment to enhancing energy storage 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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