Junichi Hanamura

This inventor holds 26 USPTO granted patents, primarily in Bicycle Components. Top assignees: Shimano Inc., Shimano Industrial Co., Ltd.. Active years: 1989-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junichi Hanamura. Retrieved from https://idiyas.com/inventor/junichi-hanamura

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

USPTO Granted Patents = 26

% Patents Active = 96.2

Average Co-Inventor Count = 1.0

ph-index = 10

Forward Citations = 289(Granted Patents)

Location History:

Nagagun, JP (1999 - 2000)
Wakayama, JP (2000)
Iwade, JP (2005)
Sakai, JP (1989 - 2007)
Osaka, JP (2006 - 2008)

Company Filing History:

Shimano Industrial Co., Ltd.

patents

Years Active: 1989-2008

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Areas of Expertise:

Bicycle Derailleur

Bicycle Pedal

Disc Brake Unit

Quick Release Lever

Shift Control Unit

Bicycle Sprocket

Bicycle Brake

Rear Derailleur

Front Chain Wheel

Bicycle Hub

Bicycle Crank

Clipless Pedal

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D575202 - Rear derailleur (2008-08-19),

2. D555546 - Quick release lever for a bicycle hub (2007-11-20),

3. D555050 - Front derailleur for a bicycle (2007-11-13),

4. D555048 - Front chain wheel for a bicycle (2007-11-13),

5. D550593 - Bicycle crank (2007-09-11),

6. D548656 - Disc brake unit for a bicycle (2007-08-14),

7. D545184 - Quick release nut for a bicycle hub (2007-06-26),

8. D544421 - Shift and brake control unit for a bicycle (2007-06-12),

9. D544420 - Shift and brake control unit for a bicycle (2007-06-12),

10. D543913 - Bicycle brake operating device (2007-06-05),

11. D535919 - Outer link for a rear derailleur (2007-01-30),

12. D534460 - Bicycle derailleur (2007-01-02),

13. D533482 - Rear derailleur (2006-12-12),

14. D533124 - Bicycle shifter (2006-12-05),

15. 6862949 - Conduit cover for bicycle (2005-03-08),

Title: The Innovations of Junichi Hanamura: A Journey Through Inventions and Patents

Introduction: Junichi Hanamura, a prominent inventor based in Osaka, Japan, has made remarkable contributions to the world of cycling through his innovative designs. With an impressive total of 26 patents to his name, Hanamura has showcased his expertise and commitment to enhancing cycling technology.

Latest Patents: Among his latest patents, Hanamura has developed a rear derailleur and a quick release lever for a bicycle hub. These innovations demonstrate his ability to address the evolving needs of cyclists, combining functionality with efficiency to improve the overall riding experience.

Career Highlights: Hanamura's professional journey includes collaborations with leading companies in the cycling industry, notably Shimano Inc. and Shimano Industrial Co., Ltd. His work at these organizations has positioned him as a key player in the design and development of cycling components, contributing to advancements in the industry.

Collaborations: Throughout his career, Hanamura has worked alongside talented individuals, including his coworker Hirohisa Toyoshima. This collaboration has allowed for a blend of ideas and expertise, further driving innovation in their projects.

Conclusion: Junichi Hanamura's dedication to innovation in the cycling sector is evident through his numerous patents and collaborations. His work continues to influence the design of bicycle components, ensuring that cyclists benefit from safer, more efficient, and user-friendly products.

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]