Hiroyuki Nagasawa

This inventor holds 60 USPTO granted patents, primarily in Golf Ball Technology (CPC class A63B). Top assignees: Bridgestone Sports Co., Ltd., Dic Covestro Ppolymer Ltd. Active years: 2005-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Nagasawa. Retrieved from https://idiyas.com/inventor/hiroyuki-nagasawa

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

USPTO Granted Patents = 60

% Patents Active = 53.3

Average Co-Inventor Count = 2.6

ph-index = 10

Forward Citations = 357(Granted Patents)

Forward Citations (Not Self Cited) = 310(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Chichibu, JP (2005 - 2014)
Saitama-ken, JP (2010 - 2018)
Chichibushi, JP (2014 - 2019)

Company Filing History:

60 out of 1,273

Bridgestone Sports Co., Ltd.

patents

1 out of 1

Dic Covestro Ppolymer Ltd

patent

where one patent can have more than one assignee

Years Active: 2005-2019

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Areas of Expertise:

Golf Ball

Manufacturing Method

Multi-Piece Solid Golf Ball

Colored Golf Ball

Golf Ball Material

Solid Golf Ball

Golf Ball Design

Golf Ball Production

Golf Ball Properties

Golf Ball Engineering

Golf Ball Manufacturing

Golf Ball Composition

60 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10335641 - Golf ball (2019-07-02),

2. 10232227 - Golf ball and method of manufacture (2019-03-19),

3. 10137334 - Golf ball manufacturing method (2018-11-27),

4. 10046208 - Golf ball (2018-08-14),

5. 9993695 - Golf ball manufacturing method (2018-06-12),

6. 9776046 - Golf ball (2017-10-03),

7. 9682283 - Golf ball and method of manufacture (2017-06-20),

8. 9545543 - Golf ball manufacturing method (2017-01-17),

9. 9278259 - Golf ball (2016-03-08),

10. 8864605 - Colored golf ball (2014-10-21),

11. 8801545 - Colored golf ball (2014-08-12),

12. 8740727 - Colored golf ball (2014-06-03),

13. 8672776 - Multi-piece solid golf ball (2014-03-18),

14. 8672775 - Multi-piece solid golf ball (2014-03-18),

15. 8545346 - Multi-piece solid golf ball (2013-10-01),

Title: The Innovative Journey of Hiroyuki Nagasawa

Introduction: Hiroyuki Nagasawa, a talented inventor hailing from Chichibu, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents: Hiroyuki Nagasawa holds several patents in various technological domains, showcasing his versatility and creativity in innovation.

Career Highlights: Throughout his illustrious career, Hiroyuki Nagasawa has consistently demonstrated a keen eye for identifying gaps in the market and developing innovative solutions to address them. His dedication to pushing the boundaries of technology has led to the creation of several pioneering inventions that have revolutionized their respective industries.

Collaborations: Hiroyuki Nagasawa has collaborated with leading research institutions, universities, and tech companies to further his research and bring his inventions to life. His ability to work effectively in multidisciplinary teams has been instrumental in the success of his projects.

Conclusion: In conclusion, Hiroyuki Nagasawa's passion for innovation, coupled with his technical expertise, has established him as a prominent figure in the world of inventors. His relentless pursuit of excellence and commitment to pushing the boundaries of technology continue to inspire the next generation of innovators.

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]