Kanagawa, Japan

Yuji Iwaki

This inventor holds 70 USPTO granted patents and 18 published patent applications and 1 EPO patent, primarily in Semiconductor Devices (CPC class G09G). Top assignee: Semiconductor Energy Laboratory Co., Ltd.. Active years: 2009-2025.

USPTO Granted Patents = 70 

% Patents Active = 38.6

 

Average Co-Inventor Count = 3.3

ph-index = 11

Forward Citations = 341(Granted Patents)

Forward Citations (Not Self Cited) = 317(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Atsugi, JP (2009 - 2017)
  • Isehara, JP (2010 - 2022)
  • Kanagawa, JP (2009 - 2024)

Company Filing History:


Years Active: 2009-2025

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Areas of Expertise:
Semiconductor Device
Bendable Touch Panel
Secondary Battery
Light-Emitting Device
Display Device
Image Processing
Touch Sensor
Electronic Device
Layout Design
Signal Processing
Composite Material
Vapor Deposition
70 patents (USPTO):Explore Patents

Title: Innovations and Achievements of Yuji Iwaki in Kanagawa, JP

Introduction

Yuji Iwaki, an esteemed inventor based in Kanagawa, Japan, has made significant contributions to the field of battery technology and display systems. With an impressive record of 67 patents to his name, Iwaki’s innovations reflect a strong commitment to advancing technology in various applications.

Latest Patents

Among Yuji Iwaki's latest patents are groundbreaking developments in secondary batteries and electronic devices. One notable invention is a **positive electrode for secondary batteries**, designed for improved cycle performance. This invention features a unique structure with multiple active material layers and separation layers alternately stacked, incorporating lithium, cobalt, and oxygen. The design aims to minimize changes in crystal structure during charging and discharging, enhancing durability and lifespan.

In addition, Iwaki has patented a **display device and system** that integrates photosensing and biometric authentication features. This innovative device includes a multi-layer structure with light-emitting elements and light-receiving elements, allowing for both touch panel functions and fingerprint authentication. By utilizing visible and infrared light, the device efficiently converts light signals into electrical signals, thus providing enhanced user security and interactivity.

Career Highlights

Yuji Iwaki works at the Semiconductor Energy Laboratory Co., Ltd., a company renowned for its advanced semiconductor technologies. His career is marked by a series of successful inventions that have impacted both the battery and display technology sectors.

Collaborations

Throughout his career, Iwaki has collaborated with notable researchers such as Satoshi Seo and Shunpei Yamazaki. These collaborations have fostered innovative research and development, leading to groundbreaking technologies that push the boundaries of what is possible in semiconductor applications.

Conclusion

Yuji Iwaki's ongoing contributions to technology through his numerous patents demonstrate a profound innovation spirit. His work at Semiconductor Energy Laboratory Co., Ltd. not only enhances battery efficiency and display functionalities but also reinforces the importance of collaboration in driving technological advancements. As he continues to innovate, Iwaki remains a key figure in the landscape of modern technology.

Profile summary based on public USPTO records.
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