Hiroshima, Japan

Kazuyuki Hayashi



Average Co-Inventor Count = 4.0

ph-index = 10

Forward Citations = 337(Granted Patents)

Forward Citations (Not Self Cited) = 288(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hiroshima-ken, JP (1998 - 2010)
  • Otake, JP (2010 - 2013)
  • Hiroshima, JP (1991 - 2016)

Company Filing History:


Years Active: 1991-2016

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Areas of Expertise:
Composite Particles
Soft Magnetic Material
Magnetic Recording Medium
Color Agent
Color Toner
Hematite Particles
Transparent Coloring Composition
Black Magnetic Toner
Ink-Jet Printing
Functional Material
Powder Magnetic Core
Organic Composite Pigments
82 patents (USPTO):Explore Patents

Title: Kazuyuki Hayashi: Innovator in Composite Materials and Magnetic Technologies

Introduction

Kazuyuki Hayashi, a distinguished inventor based in Hiroshima, Japan, has made significant contributions to the fields of composite materials and magnetic technologies. With an impressive portfolio of 82 patents, Hayashi's innovations reflect a commitment to enhancing material performance and manufacturing processes.

Latest Patents

Among his notable recent patents are developments in composite particles and soft magnetic materials. The first patent details composite particles that consist of white inorganic particles, enhanced by a surface modifier coating layer and a dye or lake coat. This innovative design not only demonstrates superior color-developing properties and tinting strength but also effectively minimizes bleeding. In another significant patent, Hayashi outlines a manufacturing method for a soft magnetic material. This method includes preparing metal magnetic particles, primarily composed of iron, and forming an insulating film that surrounds these particles. The process involves mixing the metal particles with aluminum alkoxide, silicon alkoxide, and phosphoric acid, thereby resulting in improved magnetic characteristics.

Career Highlights

Kazuyuki Hayashi has been associated with renowned companies such as Toda Kogyo Corporation and Sumitomo Electric Industries, Limited, where he has honed his skills in material science and innovation. His expertise not only contributes to his personal achievements but also enhances the reputation of the organizations he has worked for.

Collaborations

Throughout his career, Hayashi has collaborated with skilled professionals, including Hiroko Morii and Keisuke Iwasaki. These collaborations have played a pivotal role in driving forward innovative projects and expanding the scope of research in composite materials and soft magnetic technologies.

Conclusion

Kazuyuki Hayashi's body of work exemplifies the spirit of innovation that drives advancements in material technology. With an impressive number of patents and a legacy of collaborative efforts, Hayashi continues to influence the industry significantly, paving the way for future developments in composite and magnetic materials.

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