Kanagawa, Japan

Yohei Katayama

This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Hitachi Seisakusho. Active years: 2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yohei Katayama. Retrieved from https://idiyas.com/inventor/yohei-katayama-v6kcab81

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 = 4.0

ph-index = 1

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 2006

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1 patent (USPTO):Explore Patents

Title: Innovations of Yohei Katayama in Shock Absorber Technology.

Introduction

Yohei Katayama is a notable inventor based in Kanagawa-ken, Japan. He has made significant contributions to the field of shock absorber technology, particularly with his innovative designs that enhance performance and efficiency.

Latest Patents

Katayama holds a patent for a controllable damping force shock absorber. This invention features a piston member connected to a piston rod, which is housed within a cylinder containing a magnetic fluid. The design includes a disc valve with both extension-stroke and compression-stroke pressure-receiving portions. A pilot chamber is formed behind the disc valve, and a coil is positioned adjacent to passages that communicate with this chamber. By energizing the coil, a magnetic field is generated, which alters the viscosity of the magnetic fluid flowing through the passages. This mechanism allows for the control of the damping force, optimizing performance while minimizing power consumption.

Career Highlights

Katayama is associated with Kabushiki Kaisha Hitachi Seisakusho, where he has been instrumental in advancing shock absorber technology. His work has not only contributed to the company's reputation but has also set new standards in the industry.

Collaborations

Throughout his career, Katayama has collaborated with talented individuals such as Hiroyuki Matsumoto and Kenichi Nakamura. These partnerships have fostered innovation and have led to the development of cutting-edge technologies in their field.

Conclusion

Yohei Katayama's contributions to shock absorber technology exemplify the impact of innovative thinking in engineering. His patent for a controllable damping force shock absorber showcases his ability to merge functionality with efficiency. His work continues to influence the industry and inspire future innovations.

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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