Kadoma, Japan

Hiroshi Kumano

This inventor holds 7 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1976-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Kumano. Retrieved from https://idiyas.com/inventor/hiroshi-kumano-c63sosdj

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 = 3.4

ph-index = 3

Forward Citations = 57(Granted Patents)


Location History:

  • Daito, JA (1976)
  • Osaka, JA (1976)
  • Kadoma, JA (1977 - 1978)
  • Daito, JP (1980 - 1983)

Company Filing History:


Years Active: 1976-1983

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7 patents (USPTO):Explore Patents

Title: Hiroshi Kumano: Innovator in Battery Technology

Introduction

Hiroshi Kumano is a prominent inventor based in Kadoma, Japan. He has made significant contributions to the field of battery technology, holding a total of 7 patents. His work focuses on improving the efficiency and stability of primary cells, particularly through innovative materials and designs.

Latest Patents

One of Kumano's latest patents is for a silver oxide primary cell. This invention includes a casing composed of a positive electrode container and a negative electrode container, which defines a sealed chamber between them. The design features a positive electrode, an insulating layer, a negative electrode, a separator member, an electrically conductive member, and an insulating gasket housed within the sealed chamber. The electrically conductive member is pressed against the bottom face of the positive electrode container by the insulating gasket, ensuring an effective electrical connection.

Another notable patent involves a divalent silver oxide for use in primary cells. This material is stable in alkaline solutions and generates oxygen gas at a slower rate, which enhances reproducibility. The invention also includes a method for manufacturing this divalent silver oxide, which allows for the production of batteries with high energy density at a low cost. This innovation minimizes gas generation, preventing swelling or expansion of the cells.

Career Highlights

Kumano is associated with Matsushita Electric Industrial Co., Ltd., a company known for its advancements in electronic and battery technologies. His work has been instrumental in developing new battery solutions that meet the demands of modern technology.

Collaborations

Kumano has collaborated with notable coworkers such as Atsushi Nishino and Mitsugu Okahisa. Their combined expertise has contributed to the success of various projects and innovations in the field of battery technology.

Conclusion

Hiroshi Kumano's contributions to battery technology through his innovative patents have significantly impacted the industry. His work continues to pave the way for advancements in 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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