Toyota, Japan

Hisao Ootani

This inventor holds 4 USPTO granted patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1981-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Ootani. Retrieved from https://idiyas.com/inventor/hisao-ootani

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 4

Forward Citations = 37(Granted Patents)


Company Filing History:


Years Active: 1981-1988

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4 patents (USPTO):Explore Patents

Title: Hisao Ootani: Innovator in Clutch Technology

Introduction

Hisao Ootani is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of automotive technology, particularly in clutch systems. With a total of 4 patents to his name, Ootani's work has had a lasting impact on vehicle performance and reliability.

Latest Patents

Ootani's latest patents include innovative designs for friction disc clutch assemblies and clutch disks. The friction disc clutch assembly features a unique design that includes a flywheel secured to a drive shaft and a clutch cover with a radial exhaust hole. This design allows for the effective expulsion of muddy water that may enter the clutch cover, enhancing its durability and performance. The clutch disk, on the other hand, utilizes at least two endless elastomer belts to connect a hub and a clutch plate. This design ensures efficient operation by allowing the bushings to rotate around the pins, providing a reliable connection between components.

Career Highlights

Throughout his career, Hisao Ootani has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Toyota Jidosha Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in clutch technology.

Collaborations

Ootani has collaborated with talented individuals such as Satoru Maruyamano and Yusuke Horiuchi. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the automotive sector.

Conclusion

Hisao Ootani's contributions to clutch technology exemplify the spirit of innovation in the automotive industry. His patents reflect a commitment to enhancing vehicle performance and reliability, making him a significant figure in the field.

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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