Wako, Japan

Kunio Shirakawa

This inventor holds 7 USPTO granted patents. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Honda Motor Co., Ltd.. Active years: 2001-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunio Shirakawa. Retrieved from https://idiyas.com/inventor/kunio-shirakawa

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 = 2.5

ph-index = 4

Forward Citations = 36(Granted Patents)


Location History:

  • Saitama, JP (2005 - 2010)
  • Wako, JP (2001 - 2011)

Company Filing History:


Years Active: 2001-2011

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7 patents (USPTO):Explore Patents

Title: Kunio Shirakawa: Innovator in Vehicle Steering Technology

Introduction

Kunio Shirakawa is a prominent inventor based in Wako, Japan. He has made significant contributions to the field of vehicle steering technology, holding a total of 7 patents. His innovative designs focus on enhancing the efficiency and usability of steering systems in vehicles.

Latest Patents

One of his latest patents is a vehicle steering apparatus that utilizes steer-by-wire (SBW) technology. This invention aims to downsize an expensive turning-power motor by mechanically separating the steering mechanism from the turning mechanism for road wheels. The turning-power motor adjusts the road wheels based on a turning angle-steering angle ratio, which is influenced by the vehicle's speed. This ratio increases with speed until a predetermined value is reached, after which it decreases, optimizing steering performance.

Another notable patent is for a steering handle designed for comfort and ease of use. In this design, the axis of the steering shaft is inclined to be higher in the forward direction of the vehicle body. The left and right grips can rotate in opposite directions, allowing the driver to maintain a natural posture while steering. This design prevents unnatural wrist twisting and facilitates a smoother steering operation.

Career Highlights

Kunio Shirakawa has worked with notable companies in the automotive industry, including Honda Giken Kogyo Kabushiki Kaisha and Honda Motor Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle technology.

Collaborations

Throughout his career, Shirakawa has collaborated with talented individuals such as Hiroshi Furumi and Takafumi Ozaki. These partnerships have contributed to the advancement of his inventions and the overall progress in vehicle steering systems.

Conclusion

Kunio Shirakawa's contributions to vehicle steering technology demonstrate his commitment to innovation and improvement in automotive design. His patents reflect a deep understanding of both functionality and user experience, 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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