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Tokyo, Japan

Koji Ishizaki

This inventor holds 266 USPTO granted patents and 25 published patent applications and 1 EPO patent, primarily in Touch Detection Technology (CPC class G06F3-044). Top assignees: Japan Display Inc., Dai Nippon Printing Co., Ltd., Magnolia White Corporation. Active years: 2004-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Ishizaki. Retrieved from https://idiyas.com/inventor/koji-ishizaki

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

Calculating rank
USPTO Granted Patents = 266 

% Patents Active = 93.6

 

Average Co-Inventor Count = 3.0

ph-index = 9

Forward Citations = 530(Granted Patents)

Forward Citations (Not Self Cited) = 389(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Shinjuku-Ku, JP (2006 - 2009)
  • Tokyo-To, JP (2007 - 2009)
  • Kanagawa, JP (2016)
  • Toyko, JP (2021 - 2023)
  • Tokyo, JP (2004 - 2024)
  • Aichi, JP (2012 - 2024)

Company Filing History:


Years Active: 2004-2026

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Areas of Expertise:
Touch Detection
Sensor Device
Display Device
Electrostatic Capacitance
Input Device
Touch Panel
Display Panel
Detection Electrode
Electronic Apparatus
Mesh Electrodes
Manufacturing Method
Touch Function
266 patents (USPTO):Explore Patents

Title: Koji Ishizaki: Pioneering Innovator in Display Device Technology

Introduction:

Koji Ishizaki is a renowned inventor and engineer based in Tokyo, Japan, known for his exceptional contributions to display device technology. With a remarkable portfolio of 235 patents, Ishizaki has made significant advancements in the field, particularly in the design and development of display devices and sensor-equipped display technology. This article will delve into his latest patents, career highlights, noteworthy collaborations, and the impact he has made in the industry.

Latest Patents:

One of Ishizaki's recent patents involves the revolutionary design of a display device. This innovative invention consists of various components, including substrates, polarizing plates, pixel electrodes, common electrode, and a display functional layer. By applying a display voltage between the pixel electrodes and common electrode, a display image is formed, enabling the device to exhibit high-quality visuals. Additionally, the invention features an input part with detection electrodes, enhancing its functionality and user interactivity.

Another recent patent demonstrates Ishizaki's expertise in sensor-equipped display devices. This invention entails a display panel incorporated with a detection electrode system. The display panel features pixel arrangements with varying pitches in different directions, optimizing image quality. The detection electrode pattern comprises line fragments connected by multiple connection points. The strategic alignment of these connection points adds to the device's robust sensor capabilities, making it a cutting-edge innovation in the field.

Career Highlights:

Throughout his career, Ishizaki has worked with esteemed companies, playing a pivotal role in their research and development efforts. Notably, he has contributed extensively to Japan Display Inc., a leading manufacturer of display panels for various electronic devices. His expertise has also extended to Dai Nippon Printing Co., Ltd., a prominent printing and information solutions provider. In both organizations, Ishizaki's innovative ideas and patents have proven instrumental in driving technological advancements in the display industry.

Collaborations:

Ishizaki has collaborated with several notable individuals throughout his career, further enriching his innovative prowess. Among his esteemed co-workers are Hayato Kurasawa and Koji Noguchi. These collaborations have facilitated the exchange of ideas, fostering a culture of creative problem-solving and pushing the boundaries of display device technology.

Conclusion:

Inventor Koji Ishizaki's contributions to display device technology have been invaluable, with his numerous patents and inventions propelling the industry forward. His groundbreaking designs and inventions have enhanced the visual experiences of countless electronic devices. With collaborations with renowned companies and notable co-inventors, Ishizaki continues to leave a lasting impact on the field of display technology.

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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