Izumi, Japan

Masashi Nagano

This inventor holds 202 USPTO granted patents and 4 published patent applications, primarily in Bicycle Technology (CPC class 474 82). Top assignees: Shimano Industrial Co., Ltd., Shimano Inc.. Active years: 1976-2006.

USPTO Granted Patents = 202 

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 33

Forward Citations = 5,115(Granted Patents)

Forward Citations (Not Self Cited) = 4,915(Dec 10, 2025)


Inventors with similar research interests:


    Location History:

    • Sakai, JA (1976 - 1977)
    • Sakai, JP (1978 - 1982)
    • Osaka, JP (1988 - 1995)
    • Izumi, JP (1984 - 2006)

    Company Filing History:


    Years Active: 1976-2006

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    Areas of Expertise:
    Bicycle Pedal System
    Brake Control Apparatus
    Bicycle Cleat Coupling
    Quick Release Mechanism
    Speed Control Apparatus
    Bicycle Brake Lever
    Chain Shift Aiding Structure
    Bicycle Control Device
    Bicycle Crank Mechanism
    Bicycle Derailleur
    Bicycle Headset
    Bicycle Wheel Mounting
    202 patents (USPTO):Explore Patents

    Title: Masashi Nagano: Innovating the Cycling World

    Introduction:

    Masashi Nagano, a brilliant inventor hailing from Izumi, Japan, has left an indelible mark on the cycling industry with his pioneering designs and numerous patents. With over 202 patents to his name, Nagano's inventive spirit has propelled the development of innovative bicycle components that have revolutionized the way we ride. This article delves into his latest patents, career highlights, collaborations, and the profound impact his contributions have had on the cycling world.

    Latest Patents:

    Nagano's recent patents showcase his ability to continually push the boundaries of bicycle technology. One remarkable invention is the rear bicycle derailleur, which features a base member, movable member, guide arm, and tension arm. This advanced derailleur allows for smooth gear shifting, enhancing the overall performance and efficiency of bicycles. Another groundbreaking invention is a bicycle pedal system with adaptable tread surfaces. This pedal system provides riders with the flexibility to switch between cleat engagement and an anti-slip surface, enabling a seamless transition from road to off-road cycling.

    Career Highlights:

    Nagano's journey in the cycling industry has been closely intertwined with his work at Shimano Industrial Co., Ltd. and Shimano Inc., two prominent companies in the field. His contributions and relentless pursuit of innovation have greatly influenced the product development strategies of these companies, placing them at the forefront of the cycling industry. Nagano's expertise and ingenuity have been paramount in developing cutting-edge bicycle components that improve performance, safety, and overall riding experience.

    Collaborations:

    Throughout his career, Nagano has had the privilege of collaborating with talented individuals who share his passion for cycling innovation. Notable among them are Hideaki Fujimoto and Mitsuhide Isobe. Their combined efforts and expertise have resulted in synergistic advancements, contributing significantly to the design and functionality of numerous bicycle components.

    Conclusion:

    Masashi Nagano's extensive portfolio of patents exemplifies his dedication and vision for enhancing the cycling experience. Through his inventions, he has transformed the way bicycles are designed, enabling riders to push boundaries, achieve optimal performance, and explore new terrains with confidence.

    As an inventor, Nagano has not only left an enduring legacy but has also opened up new possibilities for the future of cycling. His collaborations with like-minded individuals and his association with prominent companies have further cemented his position as a leading figure in the industry.

    Masashi Nagano's invaluable contributions continue to inspire both professional cyclists and recreational riders alike. With his unwavering commitment to innovation, he has undoubtedly made a profound impact on the cycling world, leaving an eternal mark on the industry for generations to come.

    Profile summary based on public USPTO records.
    Please report any incorrect information to [email protected]
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