Nara, Japan

Hiroyuki Katayama

This inventor holds 111 USPTO granted patents and 1 EPO patent, primarily in Magnetic Recording Technology (CPC class 369 13). Top assignees: Sharp Kabushiki Kaisha Corporation, Ford Motor Company Limited, Sharp Corporation. Active years: 1985-2008.


% Patents Active = 97.3


Average Co-Inventor Count = 4.1

ph-index = 15

Forward Citations = 867(Granted Patents)

Forward Citations (Not Self Cited) = 817(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Fujiidera, JP (1991 - 1993)
  • Nari, JP (1994)
  • Ikoma, JP (1988 - 1995)
  • Sakura, JP (1996 - 1999)
  • Yamatokoriyama, JP (2005)
  • Nara, JP (1985 - 2008)

Company Filing History:


Years Active: 1985-2008

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Areas of Expertise:
Magnetic Recording
Optical Recording
Thermomagnetic Recording
Magneto-Optical Medium
Data Reproduction
Recording Methods
Magnetic Storage
Optical Probe Element
Heat Assisted Recording
Magnetic Head Device
Recording Apparatus
Information Storage
111 patents (USPTO):Explore Patents

Title: The Innovative Journey of Hiroyuki Katayama

Introduction: Hiroyuki Katayama is a pioneering inventor hailing from Nara, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroyuki Katayama holds several recent patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hiroyuki Katayama has worked tirelessly to develop cutting-edge technologies that have revolutionized industries. His innovative spirit and dedication to excellence have earned him recognition as a leading figure in the world of inventors.

Collaborations: Throughout his career, Hiroyuki Katayama has collaborated with top research institutions, universities, and tech companies to bring his inventions to life. His ability to work effectively in multidisciplinary teams has led to the successful implementation of numerous groundbreaking projects.

Conclusion: In conclusion, Hiroyuki Katayama's passion for innovation, coupled with his technical expertise, has solidified his position as a trailblazer in the world of inventors. His relentless pursuit of excellence continues to inspire future generations of innovators to push the boundaries of what is possible in the realm of technology.

Profile summary based on public USPTO records.
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