Sakai, Japan

Tadashi Ueno

This inventor holds 4 USPTO granted patents. Top assignee: Shimano Industrial Co., Ltd.. Active years: 1981-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Ueno. Retrieved from https://idiyas.com/inventor/tadashi-ueno

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 = 4

Forward Citations = 130(Granted Patents)


Company Filing History:


Years Active: 1981-1986

Loading Chart...
4 patents (USPTO):Explore Patents

Title: Innovations by Tadashi Ueno

Introduction

Tadashi Ueno is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of bicycle technology, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of bicycle components.

Latest Patents

Ueno's latest patents include a gear crank for a bicycle and a multi-stage sprocket. The gear crank features a design that incorporates a plurality of chain gears and crank arms. Notably, some teeth of a larger diameter chain gear are strategically positioned within a range of center angles to optimize performance. The teeth are made from a material that offers superior rigidity, ensuring effective engagement with the driving chain. The sprocket patent introduces a design that omits certain teeth at the outer periphery, utilizing a wear-resistant toothed member to enhance durability and functionality.

Career Highlights

Tadashi Ueno is associated with Shimano Industrial Co., Ltd., a leading company in the bicycle component industry. His innovative designs have contributed to the advancement of bicycle technology, making cycling more efficient and enjoyable for users.

Collaborations

Ueno collaborates with Takashi Segawa, a fellow innovator in the field. Their partnership has fostered the development of cutting-edge bicycle technologies.

Conclusion

Tadashi Ueno's contributions to bicycle technology through his patents reflect his commitment to innovation and improvement in the cycling experience. His work continues to influence the industry positively.

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]
Loading…