Yokohama, Japan

Koji Yamamoto



Average Co-Inventor Count = 3.5

ph-index = 10

Forward Citations = 499(Granted Patents)

Forward Citations (Not Self Cited) = 439(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Fuji, JP (1993)
  • Hiratsuka, JP (1991 - 2004)
  • Kokubunji, JP (2004)
  • Kanagawa-ken, JP (2000 - 2006)
  • Kanagawa, JP (1985 - 2014)
  • Itami, JP (2014)
  • Higashiyamato, JP (2011 - 2015)
  • Yokohama, JP (2001 - 2020)

Company Filing History:


Years Active: 1985-2020

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Areas of Expertise:
Analysis Apparatus
Search System
N-deacetylase Activity
Keratan Sulfate Assay
Semiconductor Storage Device
Polyester Resin
Anti-Acharan Sulfate Antibody
Photo-Detection Device
Moving-Picture Processing
Object Region Data
Image Data Processing
Hybrid Electric Vehicle Testing
60 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Koji Yamamoto

Introduction: Koji Yamamoto, a prolific inventor based in Yokohama, Japan, has made significant strides in the field of technology, holding an impressive 60 patents to his name. His work primarily revolves around the development of advanced analysis apparatuses and search systems, showcasing his deep understanding of computer science and engineering.

Latest Patents: Among his latest patents, one notable invention includes an analysis apparatus that compiles an analysis method and a recording medium on which an analysis program is recorded. This apparatus features a memory and a processor that acquires two source codes for comparison. It generates abstract syntax trees, analyzes data and processing flows, reduces redundant graphical portions, and ultimately compares the two codes to find differences. Additionally, another patent entails a search system constructed from a combination of TCAM (Ternary Content Addressable Memory) and a more traditional search engine not utilizing TCAM. This innovative search engine comprises a variable-sized memory structure accompanied by different memory spaces for effective data searching.

Career Highlights: Yamamoto has had a rewarding career, contributing his expertise to leading companies such as Kabushiki Kaisha Toshiba and Mitsubishi Gas Chemical Company, Inc. His inventive spirit has not only propelled his career but has also spurred significant advancements in technology utilized by various industries.

Collaborations: Throughout his journey, Yamamoto has collaborated with esteemed colleagues, including Toshimitsu Kaneko and Takeshi Mita. Working alongside such talented individuals has likely enriched his innovative processes and contributed to the quality of his inventions.

Conclusion: Koji Yamamoto's impact on technology through his innovative patents and collaborative efforts places him among the noteworthy inventors of our time. His inventions not only showcase his technical prowess but also pave the way for future advancements in analysis and search systems. With a commitment to innovation, Yamamoto continues to influence the field and inspire future generations of inventors.

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