Yokohama, Japan

Kazuhiro Hirayama


Average Co-Inventor Count = 3.4

ph-index = 12

Forward Citations = 361(Granted Patents)


Location History:

  • Yokohama, JA (1977)
  • Hachioji, JA (1977)
  • Yokohama, JP (1978 - 1985)

Company Filing History:


Years Active: 1977-1985

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24 patents (USPTO):Explore Patents

Title: Innovations by Kazuhiro Hirayama: Pioneering Patents in Imaging Technology

Introduction: Kazuhiro Hirayama is a prominent inventor based in Yokohama, Japan, known for his significant contributions to imaging technology. With a remarkable portfolio of 24 patents, he has been instrumental in advancing the functionality and efficiency of imaging devices.

Latest Patents: Among his latest inventions are two noteworthy patents: the **Image Information Recording Apparatus** and the **Developer Concentration Controlling Device**. The Image Information Recording Apparatus utilizes a semiconductor laser and incorporates an optical filter designed to reduce discrepancies in laser intensity, ensuring uniform image density. The Developer Concentration Controlling Device enhances the performance of electrophotographic copiers by employing dual detectors to regulate developer concentration and maintain optimal image density.

Career Highlights: Kazuhiro Hirayama has dedicated his career to Canon Kabushiki Kaisha, a leading company in imaging and printing solutions. His innovative spirit and technical expertise have earned him recognition within the industry, reflecting his commitment to advancing imaging technologies.

Collaborations: Throughout his career, Hirayama has collaborated with talented colleagues, including Yasushi Sato and Katsumi Masaki. These partnerships have fostered a creative environment, resulting in various pioneering innovations that have shaped the future of imaging technologies.

Conclusion: Kazuhiro Hirayama's contributions to the field of imaging technology, reflected in his impressive patent portfolio, underscore his role as a leading inventor. His latest innovations continue to influence the development of advanced imaging solutions, showcasing the impact of collaboration and dedication in the world of technology.

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