Toyota, Japan

Hirotaka Shiratori

This inventor holds 2 USPTO granted patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Co., Ltd.. Active years: 2014-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotaka Shiratori. Retrieved from https://idiyas.com/inventor/hirotaka-shiratori

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


% Patents Active = 50.0

Average Co-Inventor Count = 1.6

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2014-2016

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2 patents (USPTO):Explore Patents

Title: Hirotaka Shiratori: Innovator in Hybrid Vehicle Technology

Introduction

Hirotaka Shiratori is a prominent inventor based in Toyota, Japan. He has made significant contributions to the field of hybrid vehicle technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and functionality of hybrid drive systems.

Latest Patents

One of Shiratori's latest patents is a control apparatus for a hybrid vehicle drive system. This innovative control apparatus utilizes electric energy stored in a battery and features a drive mode switching portion. This portion is designed to engage a clutch or brake, allowing the drive system to switch from an EV drive mode to a constant-speed-ratio drive mode. This transition occurs when the operating speed of the electric motors reaches a predetermined threshold value.

Another notable patent is related to a carrier that reduces the number of parts and bonding steps in the assembly process. This carrier includes a pair of holding members that secure a pinion shaft supporting a pinion gear. The design incorporates a coupling portion that extends toward a disc-like second holding member, which features an integrally formed external outer peripheral gear.

Career Highlights

Hirotaka Shiratori 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 hybrid vehicle technology.

Collaborations

Shiratori has collaborated with talented individuals such as Shinichi Nomura and Takaaki Kawashima. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Hirotaka Shiratori is a key figure in the development of hybrid vehicle technology, with a focus on improving efficiency and reducing complexity in design. His contributions through patents and collaborations highlight his commitment to innovation in the automotive sector.

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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