Kanagawa, Japan

Kei Takahashi

This inventor holds 314 USPTO granted patents and 58 published patent applications and 8 EPO patents, primarily in Display Technology (CPC class H01L27-1225). Top assignees: Semiconductor Energy Laboratory Co., Ltd., Sony Corporation, Semiconductor Energy Laboratory Co., Ltd.. Active years: 1998-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kei Takahashi. Retrieved from https://idiyas.com/inventor/kei-takahashi

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

USPTO Granted Patents = 314 

% Patents Active = 73.6

 

Average Co-Inventor Count = 2.4

ph-index = 16

Forward Citations = 2,178(Granted Patents)

Forward Citations (Not Self Cited) = 1,923(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Kurashiki-shi, Okayama-ken, JP (1998)
  • Kurashiki, Okayama 710, JP (1998 - 1999)
  • Okayama, JP (1999)
  • Atsugi, JP (2006 - 2011)
  • Kawasaki Kanagawa, JP (2012)
  • Kawasaki, JP (2009 - 2013)
  • Kamakura, JP (2016 - 2018)
  • Kanagawa, JP (2006 - 2024)
  • Tokyo, JP (2008 - 2024)
  • Isehara, JP (2012 - 2024)

Company Filing History:

goldMedal251 out of 16,652 
 
Semiconductor Energy Laboratory Co., Ltd.
 patents
silverMedal29 out of 58,145 
 
Sony Corporation
 patents
bronzeMedal6 out of 317 
 
Semiconductor Energy Laboratory Co., Ltd.
 patents
4. 6 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents
5. 5 out of 4,241 
 
Sony Group Corporation
 patents
6. 3 out of 254 
 
Furukawa Automotive Systems Inc.
 patents
7. 3 out of 48 
 
Japan Polyethylene Corporation
 patents
8. 3 out of 1,799 
 
Sony Computer Entertainment Inc.
 patents
9. 3 out of 2,643 
 
The Furukawa Electric Co., Ltd.
 patents
10. 2 out of 139 
 
Mitsubishi Engineering-Plastics Corporation
 patents
11. 2 out of 398 
 
Nlt Technologies, Ltd.
 patents
12. 2 out of 3,581 
 
Toray Industries, Inc.
 patents
13. 2 out of 340 
 
Yamaichi Electronics Co., Ltd.
 patents
14. 1 out of 1,258 
 
Hitachi-Kokusai Electric Inc.
 patents
15. 1 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
16. 1 out of 568 
 
Nec Lcd Technologies, Ltd.
 patents
17. 1 out of 140 
 
Panasonic Automotive Systems Co., Ltd.
 patents
18. 6 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1998-2026

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Areas of Expertise:
Display Device
Semiconductor Device
Power Storage Device
Battery Management
Abnormality Detection
Electronic Component
Amplifier
Information Processing
Control Program
Light-Emitting Device
Manufacturing Method
Solar Power Generation
314 patents (USPTO):Explore Patents

Title: Kei Takahashi: Innovations in Display Panel Technology

Introduction:

Kei Takahashi, a prolific inventor hailing from Kanagawa, Japan, has made significant contributions to the field of display panel technology. With an impressive portfolio of 242 patents, Takahashi has consistently pushed the boundaries of innovation, focusing on creating highly convenient and reliable display devices. This article delves into Takahashi's latest patents, career highlights, and notable collaborations.

Latest Patents:

Among Kei Takahashi's recent patents, a few notable ones stand out. The first is a novel display panel that offers enhanced convenience and reliability. The pixel circuit in this display panel comprises various components, including switches, capacitors, and nodes, allowing for precise control and display capabilities. These advancements contribute to a more efficient and visually appealing user experience.

Another significant patent focuses on developing a liquid crystal display device with a high aperture ratio. By employing innovative design elements such as multiple insulating layers, conductive layers, and electrodes, Takahashi aims to optimize the display's performance and increase the amount of visible light transmitted through the device.

Career Highlights:

Throughout his career, Kei Takahashi has worked with esteemed companies, including Semiconductor Energy Laboratory Co., Ltd. and Sony Corporation. These collaborations have served as platforms for him to showcase his expertise and develop groundbreaking technologies in the field of display panels.

Takahashi's several career highlights include his role in inventing and patenting novel technologies that have significantly influenced the display industry. His innovative contributions have ensured the continuous improvement of display devices, fostering a seamless and immersive user experience.

Notable Collaborations:

Working alongside talented peers has helped Kei Takahashi refine his innovations and drive technological advancements. Two notable collaborators are Shunpei Yamazaki and Hiroyuki Miyake. Yamazaki, known for his work in thin-film and semiconductor technology, has been a valuable collaborator for Takahashi, contributing to their shared goal of pushing the boundaries of display panel innovation. Hiroyuki Miyake, renowned in the field of liquid crystal display technology, has also collaborated with Takahashi, combining their expertise to develop cutting-edge solutions.

Conclusion:

Kei Takahashi's passion for innovation and relentless pursuit of excellence in display panel technology have resulted in an extensive patent portfolio. Through his inventive designs, Takahashi has made invaluable contributions to the field, further advancing the visual experience for users across various electronic devices. As technology continues to evolve, Kei Takahashi's contributions are sure to inspire future innovations in display panel technology and shape the future of visual display.

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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