Kyoto, Japan

Katsumi Nakagawa

This inventor holds 138 USPTO granted patents and 4 EPO patents, primarily in Organic Electronics (CPC class 357 30). Top assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology, Japan Science and Technology Agency. Active years: 1980-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Nakagawa. Retrieved from https://idiyas.com/inventor/katsumi-nakagawa

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

Calculating rank

% Patents Active = 82.6

 

Average Co-Inventor Count = 3.4

ph-index = 30

Forward Citations = 3,855(Granted Patents)

Forward Citations (Not Self Cited) = 3,726(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Kawasaka, JP (1989)
  • Tsuchihashi, JP (1990)
  • Kawasaki, JP (1987 - 1991)
  • Tokyo, JP (1980 - 1998)
  • Nagahama, JP (1989 - 2000)
  • Nara, JP (1995 - 2004)
  • Atsugi, JP (2000 - 2004)
  • Kanagawa, JP (1991 - 2007)
  • Kyoto, JP (2004 - 2009)
  • Zama, JP (2007 - 2012)
  • Yokohama, JP (2009 - 2020)
  • Kanagawa-Ken, JP (2015 - 2020)

Company Filing History:


Years Active: 1980-2020

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Areas of Expertise:
Field Effect Transistor
Ultrasonic Probe
Organic EL Display
Liquid-Phase Growth
Photoacoustic Imaging
Biological Information Acquisition
Silicon Production
Thin-Film Solar Cell
Image Forming Apparatus
Inspection Apparatus
138 patents (USPTO):Explore Patents

Title: Katsumi Nakagawa: Innovator Extraordinaire in Kyoto

Introduction:

In the bustling city of Kyoto, Japan, resides a brilliant inventor and patent holder named Katsumi Nakagawa. With an impressive track record of 137 patents to his name, Nakagawa has made significant contributions to the field of amorphous oxide applications and ultrasonic technology. This article will delve into his latest patents, career highlights, notable collaborations, and celebrate his innovative spirit.

Latest Patents:

Katsumi Nakagawa's recent patents highlight his expertise in the fields of amorphous oxide and ultrasonic imaging. One of his groundbreaking inventions is the "Amorphous oxide and field-effect transistor," a novel amorphous oxide applicable as an active layer in Thin-Film Transistors (TFTs). This technology incorporates microcrystals, revolutionizing the efficiency of TFTs.

Another pioneering invention attributed to Nakagawa is the "Ultrasonic probe, photoacoustic-ultrasonic system, and inspection object imaging apparatus." This patent presents an ultrasonic probe capable of forming high-quality images even when the frequency bands of the photoacoustic wave and the ultrasonic wave used in ultrasonography are separated. This technology greatly enhances the capabilities and versatility of medical imaging.

Career Highlights:

Katsumi Nakagawa's exceptional career showcases his dedication to advancing technological frontiers. He has served in key positions at renowned institutions such as Canon Kabushiki Kaisha, a leading imaging company, and the esteemed Tokyo Institute of Technology. During his tenure, Nakagawa has been instrumental in driving innovation and pushing the boundaries of scientific research in the fields of amorphous oxide and ultrasonography.

Collaborations:

Nakagawa's passion for innovation extends beyond his individual contributions. He has collaborated with esteemed colleagues, including Toshiyuki Komatsu and Yutaka Hirai, to develop groundbreaking technologies and bring revolutionary ideas to fruition. These collaborative efforts have resulted in patents that have significantly impacted the respective industries involved.

Conclusion:

Katsumi Nakagawa's exceptional talent and relentless pursuit of innovation have solidified his position as an influential figure in the fields of amorphous oxide applications and ultrasonic technology. Through his numerous patents, Nakagawa has showcased his ability to push boundaries, improve existing technologies, and develop novel solutions to complex problems. His immense contributions continue to inspire and shape the future of these industries. We eagerly anticipate the next remarkable invention that will emerge from the creative mind of this extraordinary inventor.

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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