Chigasaki, Japan

Hiromi Maruyama

This inventor holds 2 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1991-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromi Maruyama. Retrieved from https://idiyas.com/inventor/hiromi-maruyama-e39uy4za

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 = 3.4

ph-index = 2

Forward Citations = 28(Granted Patents)


Company Filing History:


Years Active: 1991-1993

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2 patents (USPTO):Explore Patents

Title: Hiromi Maruyama: Innovator in Alkaline Storage Battery Technology

Introduction

Hiromi Maruyama is a notable inventor based in Chigasaki, Japan. He has made significant contributions to the field of alkaline storage batteries, holding 2 patents that enhance battery performance and efficiency.

Latest Patents

Maruyama's latest patents include an innovative design for an alkaline storage battery featuring an improved current collector tab. This design is particularly beneficial for sealed nickel-cadmium storage batteries. The first patent describes a current collector tab that comprises a current collecting tab and a lead tab. The current collecting tab has higher electric resistance than the lead tab, facilitating easier welding to the terminal edge of the spirally wound electrode. This configuration allows for improved high-rate discharge performance. The second patent also focuses on an alkaline storage battery with an enhanced current collector tab structure. This structure connects as a current path to the marginal edge of a spirally coiled electrode, reducing internal resistance and achieving high-rate discharge performance.

Career Highlights

Hiromi Maruyama is associated with Matsushita Electric Industrial Co., Ltd., a company known for its advancements in electronic and electrical products. His work has contributed to the development of more efficient battery technologies.

Collaborations

Maruyama has collaborated with notable coworkers, including Norio Suzuki and Sennosuke Oda, who have also contributed to advancements in battery technology.

Conclusion

Hiromi Maruyama's innovative work in alkaline storage batteries showcases his commitment to enhancing battery performance through thoughtful design and engineering. His contributions are significant in the field of energy storage technology.

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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