Kanagawa, Japan

Junko Yamamoto

This inventor holds 8 USPTO granted patents and 6 EPO patents. Top assignees: Kabushiki Kaisha Toshiba, Nippon Kayaku Kabushiki Kaisha, Toshiba Corporation. Active years: 1993-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junko Yamamoto. Retrieved from https://idiyas.com/inventor/junko-yamamoto-nsmcjaob

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

Calculating rank

% Patents Active = 75.0

 

Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 12(Granted Patents)


Location History:

  • Tokyo, JP (1993)
  • Kawaguchi, JP (1995)
  • Kanagawa-ken, JP (2013 - 2018)
  • Yokohama, JP (2019 - 2020)
  • Yokohama Kanagawa, JP (2020)

Company Filing History:


Years Active: 1993-2020

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8 patents (USPTO):Explore Patents

Title: Junko Yamamoto: Innovator in Train Control Technology

Introduction

Junko Yamamoto is a prominent inventor based in Kanagawa-ken, Japan. She has made significant contributions to the field of train control technology, holding a total of 8 patents. Her innovative designs have enhanced the safety and efficiency of train operations.

Latest Patents

Among her latest patents is a train control device that includes a train position detector, a storage, and an in-vehicle controller. This device detects the traveling position of a train and stores the position when a loss of contact of the current collector occurs. The in-vehicle controller enables the train to perform coasting traveling in predetermined sections. Another notable patent is a train control device that features a storage unit, an acquiring unit, and a control unit. This device determines limit speeds for various blocks based on the schedule information of preceding trains, thereby creating a travel plan that optimizes train operations.

Career Highlights

Junko Yamamoto has worked with notable companies such as Kabushiki Kaisha Toshiba and Toshiba Corporation. Her experience in these organizations has allowed her to develop and refine her innovative ideas in train control technology.

Collaborations

She has collaborated with esteemed colleagues, including Satoshi Iba and Yasuyuki Miyajima, contributing to the advancement of her projects and patents.

Conclusion

Junko Yamamoto's work in train control technology exemplifies her dedication to innovation and safety in transportation. Her patents reflect her expertise and commitment to improving train operations, making her a significant figure in her 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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