Sakai, Japan

Takashi Segawa

This inventor holds 18 USPTO granted patents. Top assignee: Shimano Industrial Co., Ltd.. Active years: 1977-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Segawa. Retrieved from https://idiyas.com/inventor/takashi-segawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 11

Forward Citations = 374(Granted Patents)


Location History:

  • Sakai, JA (1977 - 1978)
  • Osaka, JA (1978)
  • Sakai, JP (1978 - 1984)

Company Filing History:


Years Active: 1977-1984

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18 patents (USPTO):Explore Patents

Title: The Innovative Mind of Takashi Segawa: Revolutionizing Bicycle Gears in Sakai, JP

Introduction: Takashi Segawa, a prolific inventor based in Sakai, Japan, has made a significant impact in the world of cycling with his groundbreaking patents. With 18 patents to his name, his contributions to the industry are unparalleled.

Latest Patents: Among his latest patents is the "Gear crank for a bicycle," a game-changing design comprising a crank shaft, crank arms, and a chain gear. Additionally, the "Chain gear and crank mounting assembly" showcases Segawa's attention to detail and commitment to enhancing bicycle components.

Career Highlights: Takashi Segawa currently works at Shimano Industrial Co., Ltd., a renowned company in the cycling industry. His expertise and innovative spirit have undoubtedly played a crucial role in shaping the company's advancement in bicycle technology.

Collaborations: Throughout his career, Segawa has collaborated with esteemed colleagues such as Seiji Fukui and Tadashi Ueno. Their teamwork and shared passion for innovation have led to the development of cutting-edge bicycle components that have transformed the cycling experience for riders worldwide.

Conclusion: Takashi Segawa's dedication to innovation and pursuit of excellence have cemented his status as a visionary inventor in the realm of bicycle technology. His patents continue to influence the cycling industry, leaving a lasting legacy for future generations of inventors to follow.

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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