Hitachi, Japan

Kazuma Yokoi

This inventor holds 56 USPTO granted patents and 4 published patent applications, primarily in Radiological Imaging (CPC class A61B). Top assignees: Hitachi, Ltd., Fujifilm Healthcare Corporation, Acrorad Co., Ltd.. Active years: 2005-2024.

USPTO Granted Patents = 56 

% Patents Active = 30.4

Average Co-Inventor Count = 4.7

ph-index = 10

Forward Citations = 435(Granted Patents)

Forward Citations (Not Self Cited) = 417(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Higashikanesawa, JP (2006)
  • Hitachi, JP (2005 - 2012)
  • Tokyo, JP (2019 - 2024)

Company Filing History:


Years Active: 2005-2024

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Areas of Expertise:
Radiation Imaging
X-ray CT
Photon-Counting Detector
Radiation Detection
Nuclear Medicine
Imaging Method
Tomogram Creation
Calibration Method
Radiological Support
Semiconductor Detector
Radiation Apparatus
Energy Calibration
56 patents (USPTO):Explore Patents

Title: Kazuma Yokoi: Innovator in Material Decomposition Technologies

Introduction

Kazuma Yokoi, a notable inventor based in Hitachi, Japan, has made significant contributions to the field of material decomposition technology. His innovative approach has led to the filing of 56 patents, focusing on advanced methodologies and apparatuses designed to enhance the efficiency and accuracy of material decomposition processes.

Latest Patents

Among his latest patents are groundbreaking inventions such as the "Material Decomposition Apparatus," "PCCT Apparatus," and "Material Decomposition Method." The material decomposition apparatus is particularly noteworthy as it enables the decomposition of materials in an object. This apparatus features a data storage section that retains correction data, a data input section for radiation data divided into several energy levels, and a decomposition processing section. This allows for repeated two-material decomposition, enabling the effective breakdown of materials within an object. Additionally, his radiation imaging device innovations include a method that minimizes the required calibration measurement times while enhancing the accuracy of pile-up corrections.

Career Highlights

Kazuma Yokoi has worked with prestigious organizations such as Hitachi, Ltd. and Fujifilm Healthcare Corporation. His tenure at these institutions provided him with the platform to develop and refine his inventive concepts that have led to numerous patents.

Collaborations

Throughout his career, Yokoi has collaborated with exceptional talents in the field, including Hiroshi Kitaguchi and Kensuke Amemiya. These partnerships have enriched his research and development efforts and contributed to the successful realization of his inventions.

Conclusion

Kazuma Yokoi's innovative spirit and dedication to advancing material decomposition technology have established him as a prominent figure in his field. With 56 patents to his name, his work continues to influence various industries, paving the way for future advancements in technology.

Profile summary based on public USPTO records.
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