Kumagaya, Japan

Kosaku Ueta

This inventor holds 22 USPTO granted patents, primarily in Metal Gasket Technology. Top assignees: Japan Metal Gasket Co., Ltd., Nihon Metal Gasket Co., Ltd., Nihon Metal Gasket Kabushiki Kaisha. Active years: 1988-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kosaku Ueta. Retrieved from https://idiyas.com/inventor/kosaku-ueta

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


% Patents Active = 72.7

Average Co-Inventor Count = 1.3

ph-index = 9

Forward Citations = 288(Granted Patents)


Location History:

  • Urawa, JP (1988)
  • Saitama-ken, JP (1998)
  • Okabe-machi, JP (2004 - 2006)
  • Ohsato-gun, JP (2010 - 2011)
  • Kumagaya, JP (1993 - 2012)
  • Saitama, JP (2008 - 2013)

Company Filing History:


Years Active: 1988-2013

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Areas of Expertise:
Metal Gasket
Connecting Structure
Laminated Plates
Press Mold
Cylinder Head Gasket
Metal Plates
Bead Widths
Inwardly Projecting
Folded End Portion
Cylinder Beads
Metallic Laminate
22 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Kosaku Ueta: A Patented Legacy from Kumagaya, Japan

Introduction: Kosaku Ueta, an accomplished inventor based in Kumagaya, Japan, holds an impressive portfolio of 22 patents. His work in the field of metallurgy and gasket technology has been influential in improving manufacturing processes and sealing performance in mechanical applications.

Latest Patents: Among Ueta's latest inventions is a revolutionary metallic gasket. This gasket features a base plate with a convex metal bead and a thickness-increased portion, which concentrates surface pressure to effectively seal joints between components like cylinder heads and cylinder blocks. The inclusion of an elastic sealing material enhances its performance, ensuring a stable seal while reducing production costs.

Another significant patent from Ueta is the innovative connecting structure of metal plates. This design addresses potential cracking by integrating a tongue piece that is created from laminated metal plates. The way it is punched and bent enhances its strength and resilience, particularly in areas prone to concentrated tensile stress, ensuring durability in various applications.

Career Highlights: Ueta has contributed his expertise to several prominent companies, notably Japan Metal Gasket Co., Ltd. and Nihon Metal Gasket Co., Ltd. His dedication to advancing gasket technology has played a significant role in these organizations' success in the competitive industrial marketplace.

Collaborations: Throughout his career, Ueta has collaborated with notable peers, including Hideo Watanabe and Ikkoh Ueta. These partnerships have facilitated the exchange of ideas and fostered innovations that have further enhanced the field of gasket manufacturing.

Conclusion: Kosaku Ueta's contributions to the field of invention and innovation, particularly in gasket technology, have cemented his legacy as a prolific inventor. His patents reflect a commitment to quality and efficiency that benefits the industry, ensuring that his work continues to influence manufacturing practices for years to come.

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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