Tokyo, Japan

Keiichi Hayashi

This inventor holds 17 USPTO granted patents and 2 EPO patents, primarily in Mobile Communication Systems. Top assignees: Nec Corporation, Komatsu Corporation, Power Systems Co., Ltd.. Active years: 1999-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Hayashi. Retrieved from https://idiyas.com/inventor/keiichi-hayashi

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

Calculating rank

% Patents Active = 64.7

 

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 147(Granted Patents)


Location History:

  • Kanagawa, JP (2003 - 2007)
  • Tokyo, JP (1999 - 2024)

Company Filing History:


Years Active: 1999-2026

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Areas of Expertise:
Work Machine
Mobile Communication
Portable Terminal
Electric Activation
Data Communication
Keyboard Device
Information Terminal
Music Accompaniment
Memory Device
Control Method
Transmission Method
Communication System
17 patents (USPTO):Explore Patents

Title: Keiichi Hayashi: Innovator in Work Machine Technology

Introduction

Keiichi Hayashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of work machine technology, holding a total of 17 patents. His innovative designs focus on enhancing the stability and functionality of work vehicles.

Latest Patents

Among his latest patents, Keiichi Hayashi has developed a work machine that prevents tipping over. This work machine features a vehicular body and a rear axle capable of undergoing a roll motion. A controller is integrated to assess the stability of the center of gravity and manage the roll motion of the rear axle accordingly. Another notable invention is a work vehicle that includes a steering wheel, steering cylinder, and various hydraulic components. The steering valve in this vehicle supplies hydraulic fluid to the steering cylinder based on the driver's input, ensuring efficient operation.

Career Highlights

Throughout his career, Keiichi Hayashi has worked with notable companies such as NEC Corporation and Komatsu Corporation. His experience in these organizations has allowed him to refine his skills and contribute to advancements in work machine technology.

Collaborations

Keiichi has collaborated with talented individuals in the industry, including Noriyasu Sakajiri and Hiroto Nagai. These partnerships have fostered innovation and the development of cutting-edge technologies.

Conclusion

Keiichi Hayashi's contributions to work machine technology are noteworthy, with a focus on stability and efficiency. His patents reflect a commitment to innovation that continues to impact the industry positively.

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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