Kanagawa, Japan

Tetsuji Yamaguchi

This inventor holds 152 USPTO granted patents and 16 published patent applications and 13 EPO patents, primarily in Solid-State Imaging Devices (CPC class H01L27-307). Top assignees: Sony Corporation, Sony Semiconductor Solutions Corporation, Semiconductor Energy Laboratory Co., Ltd.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuji Yamaguchi. Retrieved from https://idiyas.com/inventor/tetsuji-yamaguchi

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

USPTO Granted Patents = 152 

% Patents Active = 77.6

 

Average Co-Inventor Count = 2.2

ph-index = 13

Forward Citations = 698(Granted Patents)

Forward Citations (Not Self Cited) = 587(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Aichi, JP (2007 - 2011)
  • Kanagawa-ken, JP (2002 - 2012)
  • Toyokawa, JP (2012)
  • Atsugi, JP (2006 - 2016)
  • Minato-ku, JP (2018)
  • Kaisei, JP (2019)
  • Tokyo, JP (2019 - 2022)
  • Kanagawa, JP (2003 - 2024)

Company Filing History:


Years Active: 2002-2026

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Areas of Expertise:
Solid-State Imaging Device
Photoelectric Conversion Element
Image Processing
Electronic Apparatus
Imaging Element
Photodetector
Imaging Device
Auto-Focusing Accuracy
Charge Storage Electrode
Laminated Imaging Element
Semiconductor Device
Light Receiving Element
152 patents (USPTO):Explore Patents

Title: Tetsuji Yamaguchi: Pioneer in Photoelectric Conversion and Image Processing

Introduction:

Tetsuji Yamaguchi is a renowned inventor and innovator hailing from Kanagawa, Japan. With an impressive portfolio of 128 patents, he has made significant contributions in the fields of photoelectric conversion and image processing. This article explores his latest patents, career highlights, notable collaborations, and the impact of his inventions on the industry.

Latest Patents:

Among Tetsuji Yamaguchi's recent patents, one notable invention is the "Photoelectric Conversion Element and Solid-State Imaging Device." This invention entails a photoelectric conversion layer that includes three different organic semiconductor materials. The use of fullerene derivatives and films with higher linear absorption coefficients enhances the element's light absorption capabilities, making it ideal for applications in solid-state imaging devices.

Another significant patent by Yamaguchi is the "Image Processor, Image Processing Method, and Imaging Device." This invention introduces an advanced image processing technique that utilizes image segmentation and interpolation processing. By generating multiple map data and synthesizing them, it enables the creation of high-quality images even in situations where original pixel values are missing.

Career Highlights:

Tetsuji Yamaguchi has accomplished a remarkable career in the industry, contributing to the innovation and development of imaging technologies. He has dedicated his expertise to companies such as Sony Corporation and Sony Semiconductor Solutions Corporation. Working with leading organizations in the industry, Yamaguchi has brought cutting-edge inventions to the market, pushing the boundaries of photoelectric conversion and image processing.

Collaborations:

Throughout his career, Tetsuji Yamaguchi has collaborated with talented individuals, resulting in groundbreaking innovations. Notably, he has worked closely with Takashi Ando and Yuko Ohgishi, who are also recognized pioneers in their respective fields. Their combined expertise and collaborative efforts have led to the successful realization of various patents and advancements, further solidifying their presence in the industry.

Conclusion:

Tetsuji Yamaguchi's substantial patent portfolio and contributions in photoelectric conversion and image processing make him a prominent figure in the field of innovation. His inventions, such as the photoelectric conversion element and the image processing method, have driven the evolution of imaging technologies. Collaborating with leading companies and talented individuals, Yamaguchi's impact on the industry continues to be significant, inspiring further developments in the field of optics and imaging as a whole.

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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