Nagoya, Japan

Hiroshi Kitagawa

This inventor holds 6 USPTO granted patents. Top assignees: Mitsubishi Rayon Company, Limited, Toyota Jidosha Kabushiki Kaisha, Yamada Dobby Co., Ltd.. Active years: 1977-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Kitagawa. Retrieved from https://idiyas.com/inventor/hiroshi-kitagawa-ktp9oqee

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 = 4.8

ph-index = 5

Forward Citations = 50(Granted Patents)


Location History:

  • Nagoya, JA (1977)
  • Nagoya, JP (1979 - 2018)

Company Filing History:


Years Active: 1977-2018

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6 patents (USPTO):Explore Patents

Title: Hiroshi Kitagawa: Innovator in Heat Treatment and Jacquard Mechanisms

Introduction

Hiroshi Kitagawa is a notable inventor based in Nagoya, Japan. He has made significant contributions to the fields of heat treatment apparatuses and electronic jacquard mechanisms. With a total of 6 patents to his name, Kitagawa's work has had a lasting impact on various industries.

Latest Patents

One of his latest innovations is a heat treatment apparatus for a cylinder block, which performs heat treatment by feeding gas. This apparatus includes a first feed part designed to direct gas toward the bores of the cylinder block from either side in the axis direction of the bores. Another significant invention is an electronic jacquard mechanism that controls the shedding motion of warps. This mechanism selectively holds dropper needles using solenoids based on command signals from a computer. The movable cores of the solenoids are directly fixed to one end of the dropper needles, while the solenoids' housings are secured on a printed board associated with the computer. This design allows for a more compact arrangement of the mechanism.

Career Highlights

Throughout his career, Hiroshi Kitagawa has worked with prominent companies such as Mitsubishi Rayon Company, Limited and Toyota Jidosha Kabushiki Kaisha. His experience in these organizations has contributed to his expertise and innovative capabilities.

Collaborations

Some of his notable coworkers include Kiyoshi Adachi and Masaaki Sato. Their collaboration has likely fostered an environment of creativity and innovation.

Conclusion

Hiroshi Kitagawa's contributions to technology through his patents and collaborations highlight his role as a significant inventor in Japan. His work continues to influence advancements in heat treatment and jacquard mechanisms.

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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