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For the Inventor, By the Inventor

Osaka, Japan

Jun Kobayashi

This inventor holds 8 USPTO granted patents. Top assignee: Maeda Industries, Ltd.. Active years: 1991-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jun Kobayashi. Retrieved from https://idiyas.com/inventor/jun-kobayashi-ytewrygc

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

Calculating rank
USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 8

Forward Citations = 191(Granted Patents)


Location History:

  • Sakai, JP (1991 - 1992)
  • Osaka, JP (1991 - 1993)
  • Minamikawachi, JP (1994)

Company Filing History:

goldMedal8 out of 62 
 
Maeda Industries, Ltd.
 patents

Years Active: 1991-1994

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8 patents (USPTO):Explore Patents
1. 5312301 - Bicycle front derailleur (1994-05-17),
2. 5192250 - Multiple sprocket assembly for bicycle (1993-03-09),
3. 5188569 - Multiple sprocket assembly for bicycle (1993-02-23),
4. 5162022 - Multiple sprocket assembly for bicycle (1992-11-10),
5. 5133695 - Bicycle multiple chainwheel (1992-07-28),
6. 5104358 - Bicycle front derailleur (1992-04-14),
7. 5037355 - Bicycle front derailleur (1991-08-06),
8. 4988328 - Bicycle multiple chainwheel (1991-01-29),

Title: Innovations by Jun Kobayashi

Introduction

Jun Kobayashi is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of bicycle technology, holding a total of eight patents. His work focuses on enhancing the functionality and safety of bicycle components.

Latest Patents

One of his latest inventions is a bicycle front derailleur. This innovative device includes a movable member with inner and outer guide plates that define a guide space for the chain. The design aims to prevent the chain from being caught or damaged when entering the guide space. To achieve this, a catch preventive measure is incorporated into the movable member. Another significant patent is for a bicycle multiple sprocket assembly. This assembly features smaller and larger sprockets that engage with the chain. The larger sprocket includes specially designed teeth to facilitate smooth shifting from larger to smaller sprockets.

Career Highlights

Jun Kobayashi is currently employed at Maeda Industries, Ltd., where he continues to develop innovative bicycle technologies. His work has been instrumental in improving the performance and reliability of bicycle components.

Collaborations

He collaborates with Yoshihisa Iwasaki, who is also a talented inventor in the field. Their partnership has led to advancements in bicycle technology and design.

Conclusion

Jun Kobayashi's contributions to bicycle technology through his patents demonstrate his commitment to innovation and improvement in the cycling industry. His work continues to influence the design and functionality of bicycle components, making cycling safer and more efficient.

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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