Kanagawa, Japan

Koichi Nagasawa

This inventor holds 25 USPTO granted patents and 5 published patent applications, primarily in Display Technology. Top assignees: Sony Corporation, Tokyo Ohka Kogyo Co., Ltd., Japan Display Inc.. Active years: 1998-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Nagasawa. Retrieved from https://idiyas.com/inventor/koichi-nagasawa

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

USPTO Granted Patents = 25 

% Patents Active = 84.0

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 99(Granted Patents)


Location History:

  • Kanagawa-ken, JP (1998)
  • Aichi, JP (2010 - 2020)
  • Kanagawa, JP (1998 - 2022)

Company Filing History:


Years Active: 1998-2025

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Areas of Expertise:
Display Apparatus
Electronic Device
Pixel Array
Liquid Crystal
Manufacturing Method
Optical Compensation
Semiconductor Device
Display Unit
Storage Capacitors
Photoresist Layer
Chemical Treatment
Electronic Apparatus
25 patents (USPTO):Explore Patents

Title: The Innovative Genius of Koichi Nagasawa

Introduction: Koichi Nagasawa, a prominent inventor based in Kanagawa, Japan, has made significant contributions in the field of electronics. With an impressive portfolio of 24 patents, his work has greatly influenced the development of various electronic devices and optical systems.

Latest Patents: Among his latest innovations, Koichi Nagasawa has developed two noteworthy patents. The first patent focuses on an electronic device and the method of manufacturing electronic devices. This technology integrates a plurality of first wiring patterns that are partially coupled and extend in a first direction, an organic insulating layer placed over these wiring patterns, and a second wiring pattern positioned on the insulating layer. The second patent pertains to an optical compensation element, which is essential for improving the performance of display systems. This element consists of two members, each having a transparent substrate, alignment films, and phase difference layers, along with inorganic barrier layers bonded by an adhesive layer.

Career Highlights: Koichi Nagasawa has worked with renowned companies such as Sony Corporation and Tokyo Ohka Kogyo Co., Ltd. His career in these esteemed organizations has allowed him to leverage his creativity and technical expertise, leading to numerous successful innovations in electronics.

Collaborations: Throughout his career, Koichi has collaborated with notable individuals, including Hitoshi Tsuno and Shuji Hayashi. These collaborations have fostered a productive environment for the exploration and realization of innovative ideas, further enhancing his impact in the field.

Conclusion: Koichi Nagasawa's dedication to innovation and his remarkable achievements in patenting electronic devices underscore his influential role as an inventor. His contributions not only advance technology but also inspire future generations of inventors and engineers to explore new frontiers in electronics.

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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