Hamamatsu, Japan

Itsushi Nagamoto

This inventor holds 22 USPTO granted patents, primarily in Golf Equipment Manufacturing. Top assignees: Yamaha Corporation, Nippon Gakki Seizo Kabushiki Kaisha, Yamada Corporation. Active years: 1979-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Itsushi Nagamoto. Retrieved from https://idiyas.com/inventor/itsushi-nagamoto

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 = 1.5

ph-index = 14

Forward Citations = 1,885(Granted Patents)


Location History:

  • Shizuoka, JP (1984 - 1995)
  • Shizuoka-ken, JP (1996)
  • Hamamatsu, JP (1979 - 2000)

Company Filing History:


Years Active: 1979-2000

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Areas of Expertise:
Golf Club Heads
Wood Golf Club
Iron Golf Club
Metallic Wood Club
Racket Frame
Manufacturing Process
Wood-Type Golf Club
Golf Club Production
Golf Equipment
Club Head Design
Racket Manufacturing
Golf Technology
22 patents (USPTO):Explore Patents

Title: Innovations in Golf: The Contributions of Itsushi Nagamoto

Introduction: Itsushi Nagamoto is a prominent inventor in the field of sports equipment, particularly golf. Based in Hamamatsu, Japan, he holds 22 patents that showcase his innovative approach to manufacturing golf clubs and their components. His work has significantly impacted golf technology, enhancing player performance and equipment reliability.

Latest Patents: One of Nagamoto's latest patents is a method for manufacturing golf club heads. This method involves a series of steps where a hosel is joined to a ball-striking member. The process includes rotating the hosel while applying pressure, generating heat through friction, and ultimately forming an integral unit. In addition, he has patented a unique design for a golf club that includes a ferrule mounted in the club head's hosel. This design features recessed grooves filled with a bonding agent, ensuring a secure attachment of the club shaft.

Career Highlights: Nagamoto’s career has seen him work with notable companies in the industry. He has contributed his expertise to Yamaha Corporation and Nippon Gakki Seizo Kabushiki Kaisha, both of which are known for their commitment to quality in golf equipment manufacturing. His experience at these companies has informed his innovative designs and methods.

Collaborations: Throughout his career, Nagamoto has collaborated with other talented individuals, including coworkers Tatsuo Nakanishi and Yoichi Nagasaki. These partnerships have allowed for a mutually beneficial exchange of ideas and fostered a collaborative environment that drives innovation in golf technology.

Conclusion: Itsushi Nagamoto's contributions to golf equipment through his numerous patents illustrate his role as a leader in innovation within the sports industry. His methods and designs not only advance the functionality of golf clubs but also enhance the overall experience for players. As the industry continues to evolve, Nagamoto's work will undoubtedly leave a lasting legacy in the world of golf.

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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