Tokyo, Japan

Tadamasa Akutagawa

This inventor holds 2 USPTO granted patents. Top assignees: Yuasa Corporation, Other. Active years: 1996-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadamasa Akutagawa. Retrieved from https://idiyas.com/inventor/tadamasa-akutagawa

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Ota-ku, Tokyo JP (1996)
  • Tokyo, JP (1998)

Company Filing History:

goldMedal2 out of 38 
 
Yuasa Corporation
 patents
silverMedal1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1996-1998

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2 patents (USPTO):Explore Patents

Title: Tadamasa Akutagawa: Innovator in Battery Technology

Introduction

Tadamasa Akutagawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of battery technology, holding 2 patents that showcase his innovative spirit and technical expertise. His work focuses on enhancing the functionality and efficiency of lead-acid storage batteries.

Latest Patents

Akutagawa's latest patents include a life indicator and a lead-acid storage battery with a life indicator. The purpose of the life indicator invention is to provide a mechanism that can detect growth occurrences and obtain various information based on it. This life indicator comprises at least a sensor portion, a sending circuit, a receiving circuit, and a light-emitting diode. The sensor portion is designed to apply pressure based on the elongation of a positive plate, allowing it to detect the applied pressure as a change in electric parameters. Additionally, he developed a sulfuric acid concentration sensor for lead storage batteries, further enhancing the monitoring capabilities of these energy storage systems.

Career Highlights

Throughout his career, Akutagawa has worked with prominent companies, including Yuasa Corporation. His experience in the industry has allowed him to refine his inventions and contribute to advancements in battery technology.

Collaborations

Some of his notable coworkers include Shigeru Sano and Aya Nishino, who have collaborated with him on various projects, contributing to the innovative environment in which he works.

Conclusion

Tadamasa Akutagawa's contributions to battery technology through his patents reflect his dedication to innovation and improvement in energy storage solutions. His work continues to influence the industry and pave the way for future advancements.

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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