Toyota, Japan

Syoichi Sayo

This inventor holds 7 USPTO granted patents and 1 EPO patent. Top assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Co., Ltd.. Active years: 1999-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Syoichi Sayo. Retrieved from https://idiyas.com/inventor/syoichi-sayo

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


% Patents Active = 42.9


Average Co-Inventor Count = 3.9

ph-index = 5

Forward Citations = 113(Granted Patents)


Company Filing History:


Years Active: 1999-2014

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7 patents (USPTO):Explore Patents

Title: Syoichi Sayo: Innovator in Power Transmission Technology

Introduction

Syoichi Sayo is a prominent inventor based in Toyota, Japan. He has made significant contributions to the field of power transmission devices, holding a total of 7 patents. His work has been instrumental in advancing vehicle technology, particularly in the area of continuously variable transmissions.

Latest Patents

Sayo's latest patents include innovative designs for power transmission devices and vehicles equipped with these devices. One notable patent describes a power transmission device that features a belt-type continuously variable transmission. This device incorporates a first and second fluid pressure cylinder, a pressure-adjustment and pressure-feed device, and a control unit that manages the fluid pressure based on the driving state. This technology allows for the adjustment of the gear ratio within a permitted range, enhancing vehicle performance. Another patent focuses on the design of a belt-type continuously variable transmission, which includes a primary and secondary shaft supported by rolling element bearings. This design improves the efficiency and reliability of the transmission system.

Career Highlights

Syoichi Sayo has worked with notable companies in the automotive industry, including Toyota Motor Corporation and Aisin Aw Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in power transmission technology.

Collaborations

Throughout his career, Sayo has collaborated with talented individuals such as Ryoji Habuchi and Michihiro Ariga. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Syoichi Sayo's contributions to power transmission technology have made a lasting impact on the automotive industry. His innovative patents and collaborations with leading companies and individuals highlight his role as a key inventor in this 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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