Toyota, Japan

Hisao Otani

This inventor holds 2 USPTO granted patents. Top assignee: Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1980-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Otani. Retrieved from https://idiyas.com/inventor/hisao-otani-9keqaevt

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 = 1.3

ph-index = 2

Forward Citations = 27(Granted Patents)


Company Filing History:


Years Active: 1980-1983

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2 patents (USPTO):Explore Patents

Title: Hisao Otani: Innovator in Automotive Technology

Introduction

Hisao Otani is a notable inventor based in Toyota, Japan. He has made significant contributions to the automotive industry, particularly in the development of innovative clutch systems. With a total of 2 patents to his name, Otani's work has enhanced the performance and reliability of automotive components.

Latest Patents

His latest patents include a "Device for cooling a frictional clutch for an automobile" and a "Clutch release bearing assembly." The cooling device is designed to improve the efficiency of a frictional clutch by introducing and discharging cooling air through specially formed passages in the clutch housing. This innovation aims to maintain optimal operating temperatures, thereby enhancing the clutch's performance. The clutch release bearing assembly features a rotatable outer race and shielding plates that seal the interior, equipped with exhaust passages to facilitate airflow and improve functionality.

Career Highlights

Otani is currently employed at Toyota Jidosha Kogyo Kabushiki Kaisha, where he continues to work on advancing automotive technologies. His expertise in clutch systems has positioned him as a key player in the field, contributing to the company's reputation for innovation and quality.

Collaborations

Hisao Otani has collaborated with fellow inventor Ichio Sakai, working together to push the boundaries of automotive engineering. Their partnership has led to the development of cutting-edge technologies that benefit the automotive sector.

Conclusion

Hisao Otani's contributions to automotive technology through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to impact the performance and reliability of vehicles, showcasing the importance of innovation in automotive engineering.

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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