Fujisawa, Japan

Shigeo Wakamatsu

This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: Nok Corporation. Active years: 2001-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeo Wakamatsu. Retrieved from https://idiyas.com/inventor/shigeo-wakamatsu

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


% Patents Active = 75.0


Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 114(Granted Patents)


Company Filing History:


Years Active: 2001-2006

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4 patents (USPTO):Explore Patents

Title: **Innovator Shigeo Wakamatsu: Revolutionizing Fuel Cell Gaskets**

Introduction

Shigeo Wakamatsu, a distinguished inventor based in Fujisawa, Japan, has made significant contributions to the field of fuel cell technology. Holding four patents, his work focuses primarily on the development of innovative gaskets that enhance the performance and reliability of fuel cells.

Latest Patents

Wakamatsu's latest patents include a groundbreaking gasket for fuel cells and a method for forming it. His design addresses critical challenges such as creating a thin seal portion, improving assembly properties, and preventing positional shifts. This innovative gasket features a lip made of liquid rubber that is integrally formed on a flat plate made from materials like carbon, graphite, conductive resins, or metals including stainless steel and magnesium alloys.

Another notable patent, the method of making a gasket for layer-built fuel cells, presents a gasket that is thin yet offers excellent sealability and processability. Made from liquid rubber with a hardness of not more than 60 (JIS A), it utilizes materials such as liquid perfluoro rubber and liquid silicone rubber, and can be produced through injection molding.

Career Highlights

Wakamatsu's work at Nok Corporation has positioned him as a leading figure in the development of fuel cell technologies. His focus on practical solutions for sealing in complex environments showcases his dedication to advancing the capabilities of fuel cells, which play a pivotal role in clean energy applications.

Collaborations

Throughout his career, Wakamatsu has collaborated with talented peers, including Osamu Nagai and Yasunori Sasaki. These collaborations have fostered an environment of innovation and technical excellence, enabling the advancement of fuel cell technologies.

Conclusion

Shigeo Wakamatsu's inventive spirit and commitment to innovation have made a significant impact on the field of fuel cell technology. His patents not only address current challenges but also pave the way for future advancements, underscoring the importance of innovation in clean energy solutions. With continued collaboration and research, Wakamatsu remains a key player in the evolution of fuel cell 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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