Kariya, Japan

Tomohiko Yokono

This inventor holds 23 USPTO granted patents, primarily in Variable Displacement Compressors. Top assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kabushiki Kaisha Toyota Jidoshokki, Nok Corporation. Active years: 1995-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomohiko Yokono. Retrieved from https://idiyas.com/inventor/tomohiko-yokono

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

Calculating rank

% Patents Active = 95.7

Average Co-Inventor Count = 4.4

ph-index = 12

Forward Citations = 298(Granted Patents)


Company Filing History:


Years Active: 1995-2004

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Areas of Expertise:
Variable Displacement Compressor
Piston Type Compressor
Swash Plate Compressor
Control Valve
Sealing Structure
Lubrication Method
Displacement Control
Clutchless Design
Bearing Structure
Reciprocating Piston
Coating Layer
Guiding Mechanism
23 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Tomohiko Yokono

Introduction

Tomohiko Yokono, an accomplished inventor from Kariya, Japan, has made significant strides in the field of compressor technology. With a portfolio boasting 23 patents, Yokono has established himself as a leader in innovation, particularly in developing apparatuses and methods for controlling variable displacement compressors.

Latest Patents

Two of Yokono's latest patents illustrate his ingenuity and technical expertise in the compressor domain. The first patent describes an "Apparatus and method for controlling variable displacement compressor." This invention features a control valve that manages compressor displacement by adjusting the duty ratio sent to the control valve. By implementing limiting control when discharge pressure meets a specified threshold, the compressor's displacement is minimized, thus avoiding excessive load in the external refrigerant circuit.

The second patent, titled "Piston type variable displacement compressor," introduces a design that includes a swash plate, which supports reciprocating pistons within cylinder bores for gas compression. This system is equipped with a disconnecting valve that operates when the swash plate is at its minimum inclined angle, and a bleed hole to manage the refrigerant gas flow. These innovations collectively enhance the efficiency and reliability of refrigeration systems.

Career Highlights

Throughout his career, Yokono has worked with prestigious companies such as Toyota Industries Corporation and Nok Corporation. His contributions in these organizations have played a pivotal role in advancing technologies related to compressors and cooling systems.

Collaborations

Yokono has also collaborated with notable colleagues in his field, including Masahiro Kawaguchi and Masanori Sonobe. Their teamwork has fostered an environment of creativity and innovation, resulting in the development of cutting-edge technologies in the compressor industry.

Conclusion

Tomohiko Yokono's body of work exemplifies the spirit of innovation that drives advancements in compressor technology. Through his numerous patents, collaborations, and career achievements, he continues to influence the industry and inspire future generations of inventors.

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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