Osaka, Japan

Yasuhiro Iguchi

This inventor holds 58 USPTO granted patents, plus 1 CIPO patent and 3 EPO patents, primarily in Optical Sensors (CPC class H01L). Top assignees: Sumitomo Electric Industries, Limited, Osaka Prefecture University. Active years: 1994-2021.


% Patents Active = 84.5



Average Co-Inventor Count = 2.3

ph-index = 8

Forward Citations = 261(Granted Patents)

Forward Citations (Not Self Cited) = 243(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Itami, JP (2003 - 2004)
  • Osaki, JP (2014)
  • Yokohama, JP (2015 - 2018)
  • Osaka, JP (1994 - 2021)

Company Filing History:


Years Active: 1994-2021

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Areas of Expertise:
Photodiode
Light Receiving Device
Optical Sensor
Semiconductor
Image Sensor
Infrared Sensing
Detection Device
Hyperspectral Spectrometer
Epitaxial Wafer
Photodetector
Array-Type Device
Moisture Detector
58 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Yasuhiro Iguchi

Introduction

Yasuhiro Iguchi, an accomplished inventor based in Osaka, Japan, has made significant strides in the field of photonics and optoelectronics. With a remarkable portfolio of 58 patents, Iguchi's inventions demonstrate a profound understanding of light reception technology and material science.

Latest Patents

Among his latest innovations is a novel light receiving device that incorporates a complex structure designed for enhanced efficiency. This device features a substrate, multiple contact layers, a light receiving layer, an intermediate layer, and a wide-gap layer with a pn junction. The unique configuration allows for improved pixel isolation and optimization of light reception.

Another significant patent is a photodiode characterized by a superlattice structure. This invention includes a light absorbing layer featuring a first superlattice structure sensitive to infrared light. The photodiode is engineered with a p-type semiconductor region and an intermediate layer designed to facilitate better conduction, making it an important advancement in photodiode technology.

Career Highlights

Yasuhiro Iguchi's career includes valuable experiences at Sumitomo Electric Industries, Limited and Osaka Prefecture University Public Corporation. Through these roles, he has contributed to pioneering research and development initiatives that leverage cutting-edge technology in the optical and semiconductor domains.

Collaborations

Iguchi has collaborated with notable colleagues, including Youichi Nagai and Hiroshi Inada, expanding the scope of his research and innovations. These collaborations have fostered a dynamic environment for exploring new ideas and pushing the boundaries of current technological understanding.

Conclusion

Yasuhiro Iguchi stands out as a leading figure in the realm of photonics, with a wealth of patents that underscore his inventive spirit and technical expertise. His latest innovations highlight the ongoing evolution of light receiving devices and photodiodes, making substantial contributions to the fields of optoelectronics and material science. As technology continues to advance, Iguchi's work will undoubtedly play a crucial role in shaping future innovations.

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