Ayase, Japan

Kiyotaka Shirakubo

This inventor holds 8 USPTO granted patents. Top assignees: Hitachi Automotive Systems Steering, Ltd., Hitachi Astemo Ltd.. Active years: 2013-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyotaka Shirakubo. Retrieved from https://idiyas.com/inventor/kiyotaka-shirakubo

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

Calculating rank

% Patents Active = 87.5

Average Co-Inventor Count = 3.5

ph-index = 4

Forward Citations = 32(Granted Patents)


Company Filing History:


Years Active: 2013-2021

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8 patents (USPTO):Explore Patents

Title: Kiyotaka Shirakubo: Innovator in Steering Technology

Introduction

Kiyotaka Shirakubo is a prominent inventor based in Ayase, Japan. He has made significant contributions to the field of steering technology, holding a total of eight patents. His innovative designs have enhanced the functionality and efficiency of steering devices.

Latest Patents

Shirakubo's latest patents include a steering device that features a unique coupling mechanism. This mechanism consists of a first coupling member, a second coupling member, and an elastic member made from resin. The elastic member includes various elastic portions that allow for improved performance when the clearance between shaft members is decreased. Another notable patent is a torque detection structure for a power steering device. This invention utilizes a ball bearing to support a steering shaft, which is connected via a torsion bar. The design allows for a compact configuration, improving the assembly workability of the device.

Career Highlights

Throughout his career, Kiyotaka Shirakubo has worked with leading companies in the automotive industry, including Hitachi Automotive Systems Steering and Hitachi Astemo. His experience in these organizations has contributed to his expertise in steering technology and innovation.

Collaborations

Shirakubo has collaborated with notable colleagues such as Tatsuyoshi Maruyama and Osamu Yoshida. Their teamwork has fostered advancements in steering device technology.

Conclusion

Kiyotaka Shirakubo's contributions to steering technology through his patents and collaborations highlight his role as an influential inventor in the automotive industry. His work continues to impact the development of innovative steering solutions.

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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