Kanagawa, Japan

Takeshi Fukunaga

This inventor holds 209 USPTO granted patents and 4 published patent applications and 6 EPO patents, primarily in Light-Emitting Devices (CPC class H01L2-100). Top assignees: Semiconductor Energy Laboratory Co., Ltd., Other. Active years: 1995-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Fukunaga. Retrieved from https://idiyas.com/inventor/takeshi-fukunaga

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

Calculating rank
USPTO Granted Patents = 209 

% Patents Active = 52.2


Average Co-Inventor Count = 2.5

ph-index = 55

Forward Citations = 11,202(Granted Patents)

Forward Citations (Not Self Cited) = 10,557(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Kangawa, JP (2002)
  • Atsugi-shi, Kanagawa-ken JP (2004 - 2006)
  • Kanagawa-ken, JP (1999 - 2015)
  • Kanagawa, JP (1995 - 2017)
  • Atsugi, JP (2003 - 2017)

Company Filing History:


Years Active: 1995-2017

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Areas of Expertise:
Light-Emitting Device
EL Display Device
Semiconductor Fabrication
Electrooptical Device
Display Device
Film-Forming Apparatus
Nonvolatile Memory
Pixel Matrix Circuit
Bonding Portion
SOI Substrate
Storage Capacitor
Cavity Substrate
209 patents (USPTO):Explore Patents

Title: Takeshi Fukunaga: A Prolific Innovator in Kanagawa, JP

Introduction:

Takeshi Fukunaga, a highly accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of technology through his numerous patents. With 209 patents to his name, Fukunaga has consistently demonstrated his expertise in creating innovative solutions. In this article, we explore some of his latest patents, career highlights, notable collaborations, and the impact of his work.

Latest Patents:

One of Fukunaga's recent patents is a light-emitting device designed to deliver high image quality through enhanced homogeneity. By utilizing an anisotropic conductive film, this device minimizes voltage drop and signal delays, resulting in improved image quality and increased operational speed. This innovation showcases Fukunaga's commitment to advancing display technologies and his ability to address practical challenges.

Another noteworthy patent by Fukunaga is an electronic device incorporating an EL display with enhanced operating performance and reliability. By carefully designing the layout of the switching and current control thin-film transistors (TFTs), this invention reduces off-current generation and prevents hot carrier injection. Such improvements optimize the functionalities of TFTs and enhance the overall performance and durability of electronic devices employing EL displays.

Career Highlights:

During his career, Fukunaga has made significant contributions to the industry while working with prominent companies. He has been associated with the Semiconductor Energy Laboratory Co., Ltd., a leading research and development organization specializing in semiconductor technology. His tenure with this esteemed company further solidifies his expertise in the field of electronics and displays.

Collaborations:

Fukunaga has collaborated with notable professionals in the industry, including Shunpei Yamazaki and Jun Koyama. Shunpei Yamazaki, a prolific inventor himself, has made remarkable contributions to display technology and is known for his advancements in thin-film transistor technology. Collaborating with experts like Yamazaki and Koyama exemplifies Fukunaga's collaborative approach and his ability to work synergistically to bring forth technological advancements.

Conclusion:

Takeshi Fukunaga's extensive patent portfolio showcases his expertise and innovative mindset in the field of technology. Through his contributions to light-emitting devices and electronic displays, Fukunaga has demonstrated a commitment to improving image quality, operational performance, and reliability. Collaborating with industry leaders and working with esteemed companies has further solidified Fukunaga's impact and influence. His dedication to innovation and his ability to tackle technical challenges make him a notable figure in the landscape of inventions and patents.

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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